Original paint is a 2-stage paint (but in reality 3 steps). Primer, paint, clear coat. 90% of the quality will be the amount of prep work done before the paintjob itself. The sanding, bondo, masking, etc.
Stay away from cheap "specials" that mix the clear coat with the paint itself. It will look good for about 1-1½ yrs, then start fading & you'll rralize why it was a bad idea. A decent 2-stage paint will not be cheap.