I'm not a painter, but I helped a friend of mine paint two of my cars in the past. He had a backyard garage with a high wall fan and we would bring in the car a day or two ahead of spraying and hose everything down, including the ceiling, walls, fan, door openings and of course the car and under it, as well as the floor. Always was a good paint job. Concourse, no. Cost: around $600.00, includes paint (Imron), activator, tape, paper wrap and $100.00 to my painter. That was 30 years ago. Times sure have changed.