When installing the vent window assembly put a strip of body tape on the des. You move that assembly around and without hte experience you'll "accidently" hit an edge. Not so much the inside as you have the trim ot put on but the top edges may get it!! Caution and taking your time will serve you well.
I think on an episode of Trucks! or one of those other sunday shows they painted everything separate then masked all of the edges of anything painted before assembly to prevent a lot of scratches where parts come together.
