No for White on top, because you could be Black in the position. Also no for White on bottom, because you are White in the position!
That's not clear. I can't tell if you're agreeing or disagreeing with me that the position is illegal in classical chess. If you're claiming it's legal, you need to provide a proof game.
(By the way, the FIDE Laws of Chess specify that White's pieces are light colored and Black's pieces are dark colored. Any position which requires Black to be playing white pieces is illegal, not just silly.)
Well White is the lighter pieces, and Black has the darker ones! It isn't hard to see. (Oh, and here could be the position for if you're White.)
I'm still waiting for your proof game to show how the king and queen traded places in your position at #4742.
Oh sorry I never saw that 
there is none