Michael, that would take patience and self discipline at levels that I don’t possess . . . . yet! Maybe one day when I grow up 
I gave the seats a light wash with a very thin Grey/Dust oil paint mix to highlight the details a bit, painted the door handles and assembled the interior tub.
I also hand-painted the chrome on the dash and placed the dial decals. Still more painting to do before I fit the dash to the tub.
Cheers, D