Re: Paint rocker cover
It is going to be a pain, but you should mask it and use a scalpel to trim it perfectly.
2-pac paint handles heat alot better than acrylic, so i would use that.
You are right preparing the covers is the key to a show finish, a very good primer should be applied first, very thinly. That bites into the metal and holds the paint on better, then depending on the finish, spray the colour or use hi-fill first.
Make sure you use a very good brand of paint, you CAN'T get this from Repco, Peps, or hardware house, go to a dedicated automotive paint supplier.
The end product will reflect your choice of paint, and prep work.