painting my HF tag a long
 

Ive got my HF tag a long trailer and I want to paint the top to match the two tone of the bike (03 Heritage springer), ive never painted anything before, and ive got two questions....

1) what the hell kind of paint do I use? just keep it simple and rattle can it? watch some utube vids, learn some stuff, and get a cheap gun and go to town?

2) the lid has plenty of flex to it...will any paint I use crack and spider no matter what?

anyone ever paint one of these?