As Krusty said, these planes are a pain to skin. The Hellcat has a mirrored fuselage, so numbers or letters appear mirror imaged on one side or the other. The Wildcat/FM-2 has the same problem, but on the wings.
Besides there are similar schemes to those shown above already in the game, you would just be getting slightly different markings. So I'm not planning on doing any more Kitty skins until the shapes get redone. Unless someone wants a squad skin for their USN, USMC or FAA squadron or its for an AH scenario.