http://www.hammerite.com/uk/products....html#hammered
i recomend using hammerite paint for the chassis, you can paint it straight onto rust & it will last a lifetime i have used it myself to paint some railings(outside) at my parents house more than 15 years ago & it still looks good today so i know it realy works . i think my chassis is going to be the hammered black.
Cheers