I want to recoat my Corbin chin spoiler. It has little chip spots on it which I will use my touchup pen to cover. I was thinking about using a 2000 wet/dry sand paper with water and sand the whole spoiler then wipe it down with glass cleaner then wax/grease remover before spraying it with clear. Does this sound like the right proceduces to use? Thanks, kinda new at this stuff.