This will take a while, but each point or counter point will be answered:
1.) Britain was holding the line in a lot of areas across the globe, was faced with insurgency in Malaya, defence of the Suez Canal Zone Hong Kong surrounded by a communist state, had a commitment to securing their zone of occupation in Germany through the BAOR...and have reserves for any other crises.
Cutbacks in @ did push things rather thin; adopting a force structure considerably less than that is going to result in an inability to fulfill global commitments commesurate with the role of a great power, something that Churchill in particular was in favour of doing.
2.) The MoD simply merged the ministries, rather than the forces themselves. There is a distinct difference for command, support, doctrine, operations and other requirements. So far, there hasn't been much of an argument in favour of swimming against the tide of the rest of the world and abolishing an independent air force. Acting as a means of pseudo punishment is not really the best option - it would be like abolishing the Cavalry after WW1, rather than gradually mechanizing them.
3.) Money can be saved through spacing out various schemes and concentrating on areas of maximum return and reward.
4.) Jolly good.
5.) It is a grandiose and extremely expensive scheme at the wrong time with no direct reward to Britain, and no guarantee of any political amity resulting from it. In 1945-50, there are far more important calls on British resources.
6.) There is no pressing need for it, it add unnecessary complication and instability at a time when British finances need neither. Auditing honour would not be a popular objective, and would erode key support and capital- both political and financial - that other, more pressing priorities need.
7.) There wasn't the Liberal support to justify doing either of these at this time, and both sides of Parliament were relatively socially conservative, with strong religious opinion leaning against the; simply not viable without an earlier PoD, and doesn't give any direct benefit to Britain - the opportunity cost of less blackmail opportunities would simply not win out in a political balance.
8.) Wartime nutrition was marked by overall improvement, but with the end of war and the hopeful expedited cessation of rationing, it would strike the public as a petty assault on liberty and the British character akin to the kerfuffle over identity cards. The alternatives served up during the rationing regime (snook, whale, etc) were quite disliked. The benefits are far too slim to justify Churchill putting restrictions on the Roast Beef of Old England.
9.) They didn't serve as much of a trade barrier previous to the war, or subsequent to it in @ up to the 1970s. Without any accompanying justifications such as joining the EEC, there is no reason to throw out the measures and systems used not only by Britain, but by most of her significant trading partners. As said previously, the rationalization supplied is not enough - there needs to be some tangible gain, or it simply comes down as authorial preference rather than a viable development.
10.) This matter was very cogently examined in an episode of Yes, Prime Minister, with the figure of 7 billion pounds bandied about in the 1980s. 40 years earlier, with a much higher portion of the population smoking, revenue increases. As Sir Humphrey pointed out, not all those people die at once, and not all of them live in marginal constituencies. It smacks too much of prenatural foresight.
11.) It doesn't matter how closely they were aligned - there weren't going to be any annexations, willing or not. The West needed a whole democratic West Germany as part of the economic and military counterbalance to the Soviet bloc. Much more than that, the US would not wear it whatsoever, and it is not worth picking a fight with Suez like ramifications at the exact time when goodwill and charity from across the Atlantic is needed in spades. It robs the West of the moral high ground of condemning Soviet expansionism and dastardly deeds.
12.) "Unfit for purpose (even now)"
Leaving apart the unneeded inclusion of any modern comment, let us examine the notion.
What is the purpose?
How was the RAF unfit for it?
The purposes of the RAF in 1945 were strategic bombing, mining, anti ship operations, ASW, tactical air support, transport, reconnaissance, communications, air defence, electronic warfare and many others.
Now, it can be logically argued that some of these things were done better than others, and that they had differing impacts of differing import on the overall war effort. However, it is a different matter to make a broad and sweeping judgement on the whole organization - its operations, commanders and men.
Air power was king in 1945, with the future thought to hold more and more powerful strategic bombing. Now, this didn't eventuate historically, but there is no way of predicting that from the time.
13.) The RAF has the organizational and experience to do all these things, and the command structures to understand them, rather than the Army and Royal Navy, which had different purposes and goals.
14.) The RAF was by no means alone in holding to such doctrines in the 1930s, which also came from politicians, public commentators and experts. Many air forces believed strongly in the Douhet/Trenchard view, as vocalized by Baldwin. It is a bit rich to hurl this branding reproach at the RAF without context.
So far, we have fairly slim point on the Fleet Air Arm and some sense that a bomber centric outlook in the 1930s was not, in retrospect, the most accurate one. Hardly a basis for the type of thing you propose.
15.) Independence allows concentration on direct specialities, rather than having a service try to be a jack of all trades.
Now, if you were proposing some form of a Key West Agreement, whereby the RN get the FAA and Coastal Command, the Army get tactical transport and rotary aircraft, and the RAF commit to the understanding of providing close air support (which is something the force was structured for anyway) then a relatively strong case could be made.
Instead, what has been put forth just seems to be a vengeance wrought with hindsight from personal opinion, rather than what the perspective of Churchill, the Conservative Party, the political establishment in general and the population of Britain overall may be.
The RAF had a very good war, in terms of public relations and glamour. Trying to amalgamate the Few, the heroes of the Battle of Berlin, the Dambusters, the groundbreaking jet fighter pilots...it would not stick, and smacks of the bizarre.
16.) A combined arms approach was successfully implemented by Britain numerous times during the Cold War, along with other nations that had evil independent air forces. It does not follow that it is impossible to achieve a force capable of combined arms operations and accompanying approach without fully amalgamated forces.
17.) There are a lot of Spitfires to sell off, not to mention all the disparate types of aircraft accumulated for the war. The size of the force will also contract to an armed peacetime level, which reduces requirements. There is no need to introduce a new prop fighter with a small to middling performance advantage over the current inventory.
There is also not going to be a pressing need to operate forces of the size of the Tactical Air Forces of the War
It is an aircraft that came at the wrong time.
Funds will be limited, so it is better to spend them on projects at the cutting edge of technology where Britain currently enjoys a relative advantage.
Rather than spend money on 2000 MB.5s, these funds could go into the Canberra, the swept wing fighter projects, Nene powered Meteors and Vampires, V bomber projects, procurement of strategic transports, accelerated development of the ADEN, guided weapons research, rocketry, the Miles M.52 and related supersonic research, or funding of jet engine development.
It can also go towards procuring Meteors and Vampires at a slightly increased rate.
Air support is comfortably provided by the Tempests, late model Spitfires, P-47s (if they can be kept), Mustangs (if they can be kept), Typhoons, Brigands, Mosquitoes, Hornets, etc, even with substantial offloading to the relevant parties.
18.) A Soviet Union without the Mig-15 still has jet fighters, still has thousands of planes, a large naval programme, still has 170 divisions, is still poised across the centre of Europe eyeing the Allied forces with increasing suspicion and hostility. It still has a strategic bomber programme and an atomic bomb programme, although these were not known at the time. However, Britain is far more vulnerable than the US.
The presence or not of the Mig-15 does not impact Malaya, Hong Kong, Korea, Kenya, the Occupation of Germany, Austria, Trieste and Japan, the British role in the Middle East and Far East, colonial duties and the need for a general reserve.
So it is not an argument for further cutbacks from the force structure that was already arguably below what Britain needs to maintain her status and pretensions as a great power.
19.) For each:
An enlarged Valiant would entail a larger plane, a range of perhaps 3600 miles with a 10000lb bomb...basically akin to a Victor in performance
A Vulcan with the length and wingspan of half way between the @ Vulcan and a B-52 with a (design goal) 4500 mile combat range, a speed up around 680+ mph, an increased conventional bomb load over a useful distance, ceiling of around 60000ft, and increased engine power from the later versions of the Olympus...there is the Avro 732 Supersonic Vulcan for later, but that does look like a different aircraft.
For the Handley Page supersonic recon bomber (due in about 1958/59 to give time for development) something akin to a cross between a B-58C and the supersonic Victor designs; less range is required than the USAF planes.
For this force, a tanker would be needed, and one based on the V-1000/VC.7 would be reasonably optimal.
Whether funding allows these planes, and if so, in what numbers, is a different matter. With 328 V Bombers of three types built historically, a force level of 256 Valiants and 128 Vulcans would be absolutely marvellous, but would require cuts in some other projects, as well as not wasting money on funding projects then cancelling them close to completion.
20.) The planes wouldn't make any difference to the concerns of various groups within India (historically, a lot of equipment was gifted or sold to India and Pakistan...there are some limits to how much they need and can operate).
Help industrializing would be useful, but could be taken the wrong way - more specifics would be needed on this.
India was past the stage where it could be assuaged with Dominion status or a say within a Commonwealth as a lesser party.
Effectively, you'd have to kill off Gandhi and Nehru and even then, it would be pushing it; leadership does help, though. As people have observed elsewhere, Dominion status is a bit too little for India in the 30s and 40s, and even the 20s.
You have to offer them something really tangible and useful, and Britain can't really afford such a gesture even if there was one possible and India was willing to enter into such an agreement.
21.) No interest in doing so, and more than a little sympathy towards anti-colonial struggles and rhetoric. Now, entering into an arrangement to recruit Indian manpower under a new and different Gurkha style arrangement is a potential option, if approached in a diplomatic and advantageous enough manner.
22.) Re: Poles - Indeed
23.) No, they were destroyers and too expensive and completely unsuited.
24.) Why give what they don't need? The RCN is going to contract majorly, and has its own shipbuilding. The RAN is also going to shrink, and has limited needs...South Africa and New Zealand have very limited naval capacity, and India will not need more than the historical level.
Selling them to other nations, as was historical, in a more expedited fashion does raise hard currency.
25.) As above, with more emphasis on the hard currency. Cruisers were the capital ships of smaller navies, and could command a decent enough price, even second hand.
26.) None of the Dominions that could operate carriers would need or want Furious - the RAN, RIN and RCN all had dibs on new Colossus and Majestic CVLs of modern construction and design. Britain, on the other hand, need scrap metal for the housing programme - an honourable use.
27.) The zone is one of occupation, rather than a League of Nations mandate. It cannot be considered part of British territory or the sterling zone.
It can be used as a source of capital, ideas and equipment for Britain - grab a lot of industrial plant, confiscate the Volkswagen Beetle as one officer suggested, take patents, steel making processes from particular places in Austria and nab as many useful personnel as possible.
28.) Britain copped a fair bit for their help and their troubles - lots of expenses, a loss of some goodwill for trying to curtail immigration and sending Holocaust survivors to German DP camps, the need to keep troops in place, and an ongoing terrorist insurgency.
Getting involved decisively is going to cause more trouble than it is worth.
Britain needs the Arab states on side for the Canal, for the oil, for the prestige of being regional hegemon and for the balance of payments (good arms customers).
Benevolently neutral and making money off both sides leads to the least amount of possible problems for Britain.
29.) They aren't extra commitments - they are the historical ones.
The force level needed to fulfill them and keep a useful reserve isn't inordinantly bigger than historical - perhaps a brigade or two of infantry (can be provided by the additional Indian regiments idea, or in addition to it), keep the Army Commandos, more towards a Centurion based force quicker, begin projects for APCs and SPA based on Centurion hull and go for the EM-2, as well as an LMG and a GPMG to replace the Vickers MG* ; slightly more Royal Marines; a much stronger late 40s and early 50s Fighter Command for the air defence of Great Britain, improved transport capacity and a strong, capable Bomber Command for strategic purposes, with an earlier phaseout of prop planes; an RN based around 6 or preferably 8 decent sized carriers (4 Maltas, Ark Royal, Eagle, Indefatigable,Implacable...rebuild the last two if there are funds...based on 1 carrier at home, 1 at Singapore, 1 at Gib, 1 working up, 2 in maintenance, and the extra two, if there, in reserve) with the 4 CVLs used as ASW/commando carriers, Vanguard kept semi-active (KGVs in reserve), a dozen cruisers, 32 destroyers, 64 frigates (begin conversions in 1948, and new construction of a standard type in 1950) and 48 submarines. Reserve Fleet scrapped, all slow escorts scrapped, Coastal Forces cut.
Reach that level by 1954 or so and things are decent. Costs a bit, but if spread out over 10 years and combined with a rational approach to procurement, somewhat within the vague realms of possibility.
If funds really aren't an issue, then break out those plans for a Super Lion or two.
30.) Much obliged.
31.) It would probably lessen the initial shock of ROBOT, and may even alter the desirability of it, for at least a decade. In the long run, a floating pound is a good notion.
32.) Most certainly. The stockpiling would need to be done either using troops, or with some degree of subterfuge - Britain is only being used as a transhipment point for coal bound for Europe as aid, or some such nominally true cover.
33.) What is needed is an earlier 'In Place of Strife' combined with an approach to the more moderate unions...something that Labour is better positioned to do.
34.) Trains and shipping ideas good.
The issue with a Labour Government coming into power in 1950 is that, without major changes to their manifesto and approach, they will be keen on nationalization and even reversing some previous policies. 1950 is the halfway point for a lot of these measures...they will take until 1954 or 1955 to be fully felt in Britain, even taking into account the potential for a softened postwar fall and a stronger recovery from 1948-50.
A key will be avoiding the big rearmament spending put in place by Labour in response to the Korean War and continued by Churchill, including the illfated 'superpriority' programmes and the Swift saga. This can be in part ameliorated by not being so savage in 1945-50, or rather, choosing better areas to cut costs in, and demobilising less important capacities.
* = Whilst the Taden was historically aimed at replacing the Bren and Vickers, a light 0.280" version to replace the Bren could be well complemented by a GPMG firing a heavier round with the range and effect of the Vickers...the notion of having all weapons fire the same round is reasonable and worthwhile, though, for the 7mm calibre.