if you get vw paint they come in packs with the lacquer... doesnae matter much about the lacquer tho, but go with genuine vag paint to get a better colour match.
prep is everything, get a really good smooth surface before you start, few coats of paint and a few more lacquer on top once it's done to protect it. you'll need a fair few cans cos the vag ones are tiiiiny!
edit - 2 coats of primer too before you start! you can flat it off with some 1500 paper between coats if you want a smoother finish