HD has discontinued the Bullet Color-Matched Front Spoiler for my 2007 FXSTC (Part# 57039-08BXY Fire Red Pearl). I purchased a new spoiler of a different color off of EBay. I am fairly good with a can of aerosol paint and have found the paint color and clear coat I need on the Color Rite website. My question is how to prep the spoiler. My best guess would to use a very fine grit sandpaper to rough up the new surface clear coat then prime, paint and clear coat. Any guidance as to how many coats (paint & clear coat), how to prep between coats, etc. would be appreciated or is this something I should leave up to a professional painter?