I want to do shaving and frenching on my car but can't afford to repaint the pannels. I have always liked matte black 50 Merc Lead Sleds. Would this be cheaper? My body guy told me not to use black primer unless I seal it with clear. He made it sound almost involved as a normal paint job. Wont the clear that make it look half baked, semi shiny, and make it more expensive?