Stainless stove cover repair

[somefun]

This question pertains to my 74 Overlander. Has anyone had any success on refinishing the "stainless" stovetop cover? Mine has some pretty heavy rust spots where I think my Dri-z-air water had spilled and sat for awhile (a long while). I have tried SOS pads, Scotchbrite and even 400 grit wet and dry paper with only limited success. I thought if I kept at it, eventually I would get through to the original "shiny" metal. But black spots still remain. It looks as though the finish is pitted in some areas as well. I was thinking of using a wire wheel next!

Any suggestions?

Thanks!!