Do you need any body work? Or are you just trying to get it repainted? I went to school for auto body and worked at a shop for a while. The part you pay the most for is the prep work like 1siccEJ2 stated above because it is a pain. In my opinion hand sanding is the best way for the best ending result. But that may be because my dad only built show cars when he was alive. He never even owned a DA sander and only used hand sanding. But it's what you feel more comfortable with or if you have the patience to hand sand or rather DA it...