RE: What kind of paint to use.
unless painted on the outside the matte will not really show as the lexan body will still be gloss. or you can scotchbright the outside of the body. main problem with painting outside is it scratches easy. best way to do it would be spry black inside, scotchbright outside, paint outside too. that way if it scratches on the outside the black would still be backed on the inside.... doesnt show that much then. as regards paints, some people even used automotive paints on lexan bodies, just make sure to buy a paint adhesive promoter and paints which can stick to plastics mainly. adhesion promoter is a must though.