For me, DeRusto semi-gloss black enamel gives a nice semi-gloss sheen and is available through True Value Hardware stores. You can cut it with lacquer thinner so it dries fast, and it's very easy to spray. It's also available in spray cans for touch-up if needed. But make dang sure you mask anything you don't want overspray on--it fogs like crazy--but I've found it more durable than PPG and other more expensive paints. It's also good for the frame and underbody and anything else that needs a semi-flat tone. My 2 cents and good luck!