For my 46 Panel truck, on the items originally left bare cast, like the transmission, steering box, etc., mine looks sort of neat now with it's light rust, since I got the hard dried grease off with Easy Off Oven Cleaner. What light rust treatment, then finish do you recommend on the cast, if any, to really look like bare new cast iron? Has anyone just "satin clear coated" the cast, so it does not look fake?