I can't remember if the model didn't tip over with only one wing attached (mine is one of the kits that got damaged in moving). You may have to add weight to one side (if you put it inside the engine on the no-wing side, it won't show). Since it was never operational, its essentially a "Luftwaffe '46" kit. The brownviolet & dark green over RLM 76 is probably the most appropriate, or you could go NMF with painted puttied seams like an Me 262. Check Luftwaffe sites for RV band colors, and you can add a unit badge from spares you may have. There's also a diorama possibility, of the AC the way it was found in the factory, with both wings removed (and probably a NMF)
Its pretty much up to you, mark it the way you would like it to be seen. (desert camo with JG 77 badge, and sand filters on the intakes...oooooh)