First of all, this is a great site and hello! I'm a very hobbist painter (horse trailers, tractors etc.) and am trying to paint my project car. A 1990 Miata with a 302. It's a northern car and I've spent the last few weeks cutting out rust and welding in new metal. I've also changed the hood and one quarter from a parts car I picked up cheap and that's the reason for these questions.

I have bad shoulders and sanding is a problem, the hood and quarter from the parts car had a recient repaint with clear that's super tough to sand. Due to my shoulders I need to do this with minimum removal of the paint on the replacement parts by hand sanding (I do have a DA but my compressor is too small). Can I just shoot everything with epoxy primer to seal it, then go with a high fill primer, sand and level, then straight to either the base or acrylic urethane (haven't decided on what to use on this very BUDGET job).

I realize the best option would be to remove all the unkowns and go to metal, but that's just not an option.

Thanks, RR