Robot Boy

ok, new here, i signed up because ive been searching project guitar and google for a while, with no luck. ive started frankenstriping my ibanez RG, the primer is on, and im going to do the top coat tomorrow (im using acrylic based auto spray). after that, i need to gloss it. what i want to know is what kind of gloss is best, most durable, and also, how is the best way to apply it?