This is off topic as all hell, but, do you HAVE to paint Orks (40k) in clan colors or is just making them where garish ass clothes okay.
My Space Marine's I Already got figured out, Blood Red with trim in Burnished Gold, Gonna call them the Crimson Wyrm's (guess), though painting is slow going, and I'm planning on being lazy as hell with the Ork's, I'm gonna leave them mostly just black from the primer.
Also would orkifying a Tau Bunker be acceptable, cause I'm not gonna buy a stompa and tear it up just for an Ork bunker, besides Ork's with the huge freaking gun ontop the Tau bunker would have to be awesome, and hilarious.