Well, I sort of used to work for a body shop part-time while in college. Did a little painting on my own after that and still enjoy spraying cars, motorcycles....boats
. The most important thing for a good paint job is preparation. Only paint when your surfaces are free of blemishes, defects,... Do your final sanding with at least 320 grit. There is just so much to know if you really need details. Just keep it simple, take your time and your results will be fantastic.
-Scott