The American POV and the British POV combined is what led, OTL, to the successful American Revolution.
So if you want to butterfly the Revolution, you need a different British POV. Or else a different American POV that is premised on something other than 'the American POV was wrongs, wrongs!'
But of course, "the British POV was denying representation" - nevermind how "representation" worked in Parliament in this era - is perfectly legitimate.
I will never stop repeating that the existing system DOES give the Americans the representation "enjoyed" by Englishmen until people stop treating it as a matter of the forces of democracy vs. the forces of tyranny.
Socrates: Granting "responsible government" is one thing. But this is my position:
I think a policy worth exploring would be something where the colonial autonomy within their own affairs (as does not relate to the larger issues of the empire) is made de jure, but the obligation of the colonists - as British subjects - to pay as much as any other Briton whose rights they want. You want your rights acknowledged, acknowledge your obligations.
So to go down your list point by point:
- The colonies are allowed to trade with other colonies directly, if not with Europe
- An acceptance that sovereignty ultimately lies with parliament, but sovereignty will be devolved to the colonial legislatures for all domestic matters
- Religious establishment and practice in the colonies will always be considered a domestic matter (depends on what happens in regards to Quebec)
- The colonies will be expected to make a yearly contribution to imperial coffers, larger than present, to be raised however the local assembly sees fit
- The colonies will have representatives in the imperial parliament, and it is promised their views will be taken particularly seriously for matters that affect the colonies
- The colonies will not make war, either with the natives or with foreign powers, without acceptance from parliament
- Westward expansion will be allowed in an orderly and timely manner
- Commissions in the British armed forces will be made open to the colonists, particularly for those stationed in the Americas
- While parliament may decide where troops are based, the precise location and manner of their housing in the colonies will be decided by agreement between the local assembly and parliament, and paid for out of imperial coffers
- Each colony will establish its own court-martials for trials of soldiers accused of crimes within its territory
- The principles enshrined in the 1689 Bill of Rights apply to all citizens throughout the Empire
Blue is to the gain of the colonies, red the gain of the empire in the sense that's distinct from the interests of the colonies, and purple for something where those two don't appear in conflict.
In exchange for a sum that may or may not be reliably delivered, Britain gives (Note that I'm not arguing that all of these are all unfair or anything of the sort, I'm just comparing how much the colonists get out of the situation relative to how much they provide - doesn't have to be an equal number of points, but it's not really worth maintaining rule of colonies that there's no benefit from, is there?):
Free trade with other colonies (I presume this means all of Britain's colonies).
Sovereignty "ultimately rests with Parliament" - but it's unclear what exactly that means for making decisions of policy. Would intercolonial things such as say, the issue of Vermont, be settled by Parliament, or would that be "domestic matters"?
The entire system of representation has suddenly become considerably more problematic. How do you tell Sheffield that Boston has representatives but it doesn't merit them?
How do you deal with the Americans who think representation is 'impractical", or that American representatives will be a consistently ignored minority, or "corrupted" in London, or otherwise no good?
Frankly, this one opens several cans of worms
within the context of the rights of 18th century Englishmen that people who think a transition to pure democracy couldn't happen fast enough seem to consider unimportant.
What happens if the colonists make war despite Parliament's wishes? This one sounds like the colonists are making some kind of concession, but what would it actually do in practice to limit it?
Westward expansion being allowed isn't a bad thing (in this context), but I suspect that telling the colonies that Parliament determines how the Ohio country is handled is going to be seen in a negative light here even if moving there is permitted.
Commissions in the army shouldn't be a problem, since if any shopkeeper with the money could buy it in Britain, the idea that a Bostonian bookkeeper buying it is worse is an insult to Knox.
Of course, granting commissions is more problematic, but that has more to do with the way the army works than whether Washington gets a slot, so it can be dealt with amicably enough if the rest is.
No one loses from it, however.
The barracking thing should be reasonable, but I'm not sure about the payment part. Especially since if (for example) Massachusetts is paying into the imperial coffers, what's wrong with Massachusetts paying for the barracks of soldiers stationed there?
Not sure anyone really loses, but in blue for the fact the colonial "No." seems to have more sway here.
On court martials: Is this standard practice? Meaning, are soldiers who do something in - say - Ireland - usually tried by Irish court martials?
And, well, the 1689 Bill of Rights being applicable to all British subjects is pure fairness. No one loses.
Sorry if this is a bit of a wall of text, just that there's a lot to cover and I'm a questioning sort of guy.