I don't know if PGW takes outside work any more. I used to go there when Ross first started out in the 90's, but since they went to PGWDTI, I doubt it.
There is Rob in Dugald, he seems very nice and reasonable. rdpgunsmithing.com
Depends what you want as well I guess. Looking for repairs or custom work? There seems to be a big difference between the traditional gunsmith that fixes things, makes obsolete or unobtainable parts, or the guys that put together new parts to make custom rifles.