One thing to consider for the allies is to add in a few of the ships that were cancelled by the imminent end of the war.
Another option is to consider allowing the allies to make conversions like in my CV variant, allowing for some further Sangamon class tanker-CVE conversions. You could also give the allied player more options for how they upgrade their old battleships, instead of basing it off the historical upgrades.
Hi Juan. In Da Babes we completed the build and deployment of the Commencement Bay class and I would suggest that as a more reasonable late war alternative. They weren't much externally different from the Sangamon. They were on the T3-S2 hull and used the same engineering plant, but rather than being a make-do 'conversion', they were a full up design. Darn near the same flight deck, but had designed-in catapults and a lot of interior restructuring, and could (and did) host F4U, F6F airgroups with ease and efficiency.
These were laid down in late '43, and the lead ship was launched 5/44 and commissioned 11/44, so there should be no problem with "what if" considerations. As to 'conversions' to Sangamons, the only available T3 hulls are the Cimmaron class AOs. The Sangamon CVE conversion was usually done during construction, but a few (I believe 3) were converted after launch, but before fitting out. It took these three an average of 6.2 months to convert to the CVE configuration after launch as an AO. If a T3 is operational as an AO, I think it likely that the conversion time to a CVE would be in the 8 - 9 month ballpark.
Just my humble opinion.