unless you have a hook up a 400-500 job with body work will not last long. I prepped my entire car, did all the body work, stripped it and brought it to the painters to just get sprayed black so it was all one color. That paint alone was 300.
Got a estimate to get the same car repainted before and the esitmates were 2000-3000 with no body work (no welding, no bondo...just sanding, prep, etc)