I've found it best to subject the hood to several hot / cold cycles after initial cleaning and sanding. I'd suggest sealer even over sanded primer on fiberglass. Most paint brands will have a single stage formula for your color but you may not find a factory packaged single stage. If you're willing to clearcoat it, finding that color in a factory mixed form should be do-able. I don't like know of what color Rustoleum or Duplicolor matches right up, lol. Probably neither.