No point! Just order a single stage color and use hardener in it. Reguardless, the poly paint you want will still cost more even without the metallic mica in it!! It will be transparent as hell and the coverage will be the real issue. You will end up using twice the amount of paint needed to cover the substrate. PPG has an affordable line of products called Shopline. Your local paint supply can show you a chip book with just about any color you can imagine. They can even do custom color match if thats what you want.
Personally, if you are going to refinish your ride just use basecoat/clearcoat. Will be the last paint you ever need!! Never have to worry about waxing either, a coat of polish every 3-4 months and your good to go!
