Here's my version of this.
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1. Britain is one of the victors, the Protestant part of Ireland stays in the UK.
2. Germany keeps Memel and Danzig, gives up Alsace Lorraine. Austria loses South Tyrol.
3. Asmuch as it pains me to say it, Poland gets nothing from Germany, even though its claims to Posen, Upper Silesia, the corridor (save Danzig) and possibly Warmia are rock solid. Poland is not a victorious power and it is too big a concession to force on Germany, which is really the main existential threat to Poland down the road (plus Poland already faces Russia). Furthermore, Germany requires access to the coal of upper Silesia to help it pay the reparations, which it's still going to do by the way. Poland's Eastern border consists of the country as per the Curzon line with the version that includes Lwow, but not Wilno (but Poland might take it by force so who knows).
4. No independence for Russian territories except Poland, the Baltics and Finland. Those are enough as it is.
5. Italy obviouosly takes no territories from France. That is a patently absurd demand and Italy never even expected to receive these territories. Italy receives both Trentino and South Tyrol all the way to the Brenner pass. It also gets all of Istria including Fiume and the parts of the Dalmatian coast it was promised in the Treaty of London, in spite of the unfairness to Croats. It is vital that Italy be a strong ally to France in the future and that it remain stable.
6. Greece may receive Northern Epirus in areas that vote to join but only if the plebiscite isn't conducted by the Greeks (They were trying to rig it blatantly). Greece receives Western Thrace and the area surrounding Izmir/Myrna and any Kurdish areas that might be included in that state. Constantinople remains in Turkey.
7. The treaty of Sevres is a whole different animal from here on out so I'll leave out any concrete things about the fate of Armenia and Kurdistan. It is important to remember that it is very difficult to force Turkey to accept that treaty in full.