spray paint might build up to thick im an auto painter i would recomend base coat/ clear coat you can get any color you can trhink of and you wont have to worrty about film build up. fyi on the pearls, most are whats called a 3 stage which uses a tinted clear on top of the base then clear coat. the cost of these colors will probly cost more than the reel it self. min qyanity you can buy are pints so a pint of each will coast about 75 to 100 bucks a pint the clear about 60 a quart plus hardner 20- and you wont gewt the finish you think you might with anything but automotive clear.