After replacing the rear end and bleeding all four brakes, I noticed that my front disk calipers look like crap. Whats the best way to restore them. They are KH style calipers. Can i dismantle them, bead blast them and run them thru my parts washer? Should I just wash them, scuff them up and paint them? I have black VHT caliper paint but you need to bake them to cure the paint. Are there rubber seals in there that need to be removed?