Only, the japanese versions of the 163, the 262, and the 234, were the equivelant of Luft'46, never produced, only "tinkered" with. They were pipe dreams, designed for a country with all the resources to make them, not for the resource-starved Japanese islands. They'd never have made full production, even if they had time to start. Heck, even conventional craft like the Ki84 ran into SERIOUS quality control -- and it's a simple radial!
I don't think the skins really have a place, as they were "mythical" aircraft.
Not to mention the Japanese didn't just design clones, they took the German plans and upgraded them, including doubling the range on the 163 and various other designs.