I don't know if he would be interested in doing a grill, but Al Reed Polishing in Anaheim CA would be one to check with. He's well known for restoring (polishing/anodizing) Porsche Fuchs wheels. He may be able to restore your grill, or know somebody that's able.
He doesn't have a website, but here's his contact info.
https://plus.google.com/117597557713...ut?gl=us&hl=en
Here's a wheel restored by Al Reed.
Another guy that restores anodized Porsche wheels is Harvey Weidman. I've read reviews that say Harvey is the guy to go to if you want your Fuchs anodized.
Weidman's Wheels
(530) 534-7903
Address:
1675 Wyandotte Ave
Oroville, CA 95966
Wheel restored by Harvey:
