The guys that build the '1946 Luftwaffe' models are on a sticky wicket to start with, a fictional model of a fictional aircraft with fictional markings!
it's your kit, paid for by your hard earned cash, do what you will with it. Maybe there ought to be a section for this sort of model in competitions, or how about this months weird kit in FSM?
Ken Ellis, who, amongst other modelling subjects, edited Airfix magazine for years, once wrote,' There's a prototype for everything'. Maybe not for some of the idea's above, but if you can think of an alternate scheme for a WW2 fighter, say, Chances are that someone, somewhen has had the same idea or similar.
So, it's all about having fun, time to be serious when they're nailing on the lid,
Go for it!