Yes I can.
Inside… is tough. The stuff is sprayed out of a hvlp paint gun, so I have no idea how the heck to get it inside. If its stainless already there is no need to coat the inside anyways.
Outside, no problem.
What color?
Silver, black, is the cheapest. Polished is more expensive for materials and it polishing time.
Lastly, it has to be sand blasted prior to shooting it. so i would be send out for that.