Okay, first let me say, i have used several Eastwood products, but locally all I had access to is PPG products. If I stay with PPG the cost is going to be over $400 per gallon, and because of the size of the car it looks like it will take nearly 3 gallons. My question now is, will Eastwood Urethane spray well over PPG 2K Shopline Primers? I am looking to use a Royal Blue on the body and a medium grey on the fenders etc. for a two tone look.