Repainting Twin scoops and go wing

What is the standard procedure for the twin scoops and go wing paint . I am thinking they should match and I'm thinking a satin black. can it be rattle can or spray gun paint any suggestions? Also does anybody prefer hood black out or body color for scoops what is the go to and what was factory etc. also if you wer to go wit satin what is the primer how many coats any sealer etc? These parts arent metal so thats why I ask.