Understatement of the year, lol !Dannng! That is a serious build! I can't wait to see more!
As far as color. Dunno - I could picture it as either, but I had to do some searching for inspiration:
Looks like black is more popular, though there are white options, too. Guess you could always jazz it up with other options... gray? White base coat, black overcoat and buff off some of the high areas to give accents? White under with black crackle paint over for an aged finish? Or vice-versa? Black with white curtains so it still stands out? Black with flames, smoke and demon eyes inside?
Can't wait to see what you come up with!