Go to your nearest PPG dealer and buy everything from one place (and probably from one family of products like PPG Deltron): prep, primer, color, thinner and clear coat so that everything matches. That way, no disaster like crazing or failure to dry, or other catastrophies that could take hundreds of hours to solve.
Or, screw it all and get some rattle cans at Home Depot. Nothing in between, IMO.
Or, screw it all and get some rattle cans at Home Depot. Nothing in between, IMO.