ok man. get the paint i told you. get a can of grey high build primer. a can of black truck and van stuff and can of the same clear. you can get all 3 at the parts store. spray the primer on in moderate coats. take a sheet of 1000 grit and wet sand it smooth. lay down moderate coats of black paint. dont dust it no need takes to long. but dont lay it on super thick either. once its covered well spray the clear on. do a light coat first. let it get tacky then do a couple thick coats. if you do it right you prob wont have to buff it. i have never tried to buff a spray can clear so i dont know how it would work but i promise you it will be more trouble than a spray can paint job is worth.