That question is so open ended that it can't be answered with an adequate response, are you looking for a "rotisserie" style paint job where the car is as OEM finished, or over restored in finish? ie showcar finish, or a quickie Macco job?...who will disassemble the car for paint?, if that's your intention, if so who will assemble the car after paint?, any frame/floor rust repairs needed?, that you know about?, are you prepared financially for the inevitable when the initial quote is now doubled?....the more info on your paint intentions, the clearer the estimates...