I'm certain there is someone local that can do both regular plating and stainless.
The only reason I found SUN plating was simply becasue they were near me and easy to find and bring my stuff to.
If I spent more than 30 minutes researching it, I'm positive a local plater exisits that can do it all.
However, with travel to the US over the last couple of years and the dollar at near par, it was just as easy to give all my work to Mike Chestnut and pickup at Expo.
I did speak to some guys up at The Polishing Depot a while back but havent had the need to use them yet. Now that I think of it, I think they said they could probably do stainless steel too.
If anyone wants to do a test run, I can donate a couple of parts to make up a minumum order.