I am going to be painting some lund hood scoops for my ex. I have paint from paintscratch.com to match the paint on the ex. My question is, after i paint them with that matching paint what kind of clearcoat should be used. I didnt want to spend the $20 on a can of clearcoat from paintscratch.com. Can I use some kind of generic clearcoat if I use a few coats. I just want something fairly cheap but something that will look good and not come off.