I got a cheap hvlp gun at advance or autozone. I painted two cars and a few bikes with it so far, no problems. Cost about $100 or $120.

The compressor is probably gonna be your weak link unless you have a big one. I have a 110 volt one the one that is a little bigger and taller than a trashcan. Definitely not quite enough for painting cars, but I did it anyway. Watch out for water in the lines- at least use an inline filter.

good luck