All manuals say it is necessary to relieve pressure on the cams by removing the rocker boxes before removing the cam cover. Translation, rotate engine and mess with a perfectly good engine for cosmetic reasons. Tape, light sand paper. AutoZone prep wipe and your choice of high heat engine paint is the best rout unless you want to buy a gasket kit and waist a weekend... either way I'm sure it will look great, I vote the non-evasive rout.