That green MKIII you posted looks like a candy paint ($$$). I say black. Much cheaper, don't have to do door jambs & under hood/liftgate. Spend the money on a good paint system like Dupont Choma premier and call it done.
Focus on THE PREP!!! A paint job is only as good as what's underneath. Get that body arrow straight! I would have them lay three coats of clear, let it cure, hit it with 600grit wet, and lay out another 3 coats of clear. Have it color sanded (up to 2500grit) and buffed out. You'll love it.
Post pics of the car when done please. When will it be completed.