I’m wondering on how well this would work out for the allies.
On UK turn one purchase 3 transports, 1 AC, 1 inf, and 1 armor, move the Canadian inf east. Sink the German fleet, move your Egypt fighter to Z8 where you rally your fleet. Have the US send there eastern fighter to your AC on there turn as well as there starting navy. On UK2 purchase another aircraft carrier and as many units as you can afford (you should collect a fair amount of money at the end of your first turn) and land in France. Place your new AC with your fleet and load it up, if you lost a fig sinking the Germans have the US send you another one. The US could also begin to shuck, send minor bomber support, or whatever they choose. Italy will have a difficult time retaking France alone with 8 enemies on it, and with an aggressive Russia and/or US support you could threaten capitals very quickly. As far as income, France is worth 11 IPC to almost every player (Germany, US, UK, and even Italy depending).
This would be best against an aggressive Germany when Russia is also playing aggressively, let Russia grind down the Germans while you land on there doorstep.