Yeah, I'm going to try to put together a alpha version of the scenario to be included in conquests, with most of the flavour units, and the full tech progression al the way up to 1986 (this should distinguish it from other WWII scenarios).
Heres a preview of the generic fighter with its different colour variations. I'm also going to do a generic medium bomber from this era with the same (or similar) colour variations.
From the top;
French fighter, with western european green body, & cyan/blue civ colours.
American fighter, the body will probably be non civ coloured dark blue.
Soviet fighter, in a popular early war colour scheme, used most often on imported planes.
Republican Spanish fighter, With mediterainean brown body, & yellow civ colours.
All these variations can be created from the original basic colour scheme with little extra work.