I bought a Supraphonic for $80 that had a bad case of Supracne.
Found a plating company that would strip the chrome off for $25 (it was below their minimum piece fee of $100, but he took pity and tossed it in the bath with another client's work).
Tried to do a simple brushed finish with what came back, but I brushed and brushed and could never get below the pits, so it still kind of looked like hell.
Checked with a local powder coater, who gave me a laughable quote. In the hundreds, IIRC.
I wound up giving it to a friend to bead blast, as he had access to a blasting cabinet at work. Came out pretty nice, if a bit rough. I took some Scotch Brite to it to knock off the roughness and it looks fine as a bare aluminum shell.
Been thinking lately about maybe trying a Plasti-Dip spray coating on it:
http://dipheadsunite.com/our-colors/
If I don't like it, it can just peel right off.