It's possible to learn to do it yourself. I did, and I rather enjoyed figuring out how to (tediously) work through the steps and get very nice results.
But if you want to have it done for you, we do have have a club member who advertises his services for the restoration of stainless trim in our publications. His name is George Iverson in Minnesota. His phone is listed as 800/325-0480.. Not having used his service, I don't know anything about how well satisfied his customers are. But I'd think others can comment on that.
Good luck.