$1200 would be a good budget for the primer, paint, clear coat, sand paper, tack rags, body filler, paper, buffing pads, buffing compound etc, etc. Then you have to have a shop, a high volume air compressor, desiccant filter, paint guns, wheel and tire covers, masks, tyvec suits...etc Sooooooooo, cost would prob be a minimum of 2500.00 that's the painters cost ...and assuming he doesn't use very high end paint guns and equipment. Paint booth etc. I'm talking about his cost to help replace shop stuff and cover the budget. Now you have to figure labor. Painting is ART. No such thing as perfect, but the closer someone can get, the more they can demand for their work. And if you want to start pulling windows out of a 30+ year old vehicle, you are in essence going into resto work...because the window seals will not be able to be reused. What happens when you find a rust bubble under the seal?
But it is important to know and discuss how far your painter is going to go...ie remove doors? remove bumpers, Tape up door handles, vents, LC emblems or remove? Will he be painting the door wells and the inner fender? The engine compartment? The underside of the hood? Details. The more you demand the more time and energy, and the cost. Really want to get his neck hairs up ...ask him how he will handle imperfections that will come up...runs in the paint or clear, orange peel etc.