Spokane Metal Finishing did the stainless on my '63 several years back, great job. Owner is Kim, son of founder IIRC.
A few years ago they goofed up a Ford PU grille for a customer and didn't take care of it.
I used Tripleplate in Spokane for my '64 bumpers, came out perfect, was spendy even then.
They may have changed their name to Restoration Chrome since then.

Probably the best in the NW area is Ogden Chrome in Ogden, UT.
Got show-car perfect results, but they were expensive and a fairly long turnaround as they're busy.
I think they do Kindig's stuff.

Google "chrome plating in spokane" and a few others pop up.
Probably someone in Seattle or Portland areas, don't know.