I don't know of anyone doing the work on the west coast, but on the east, there's the Huckins yard themselves and Olsen Marine up on Cape Cod. A small yard in North Caroilna, Blake Boatworks rebuilt Bubbles as Cherokee over the course of a few years, maybe your best bet is to find a small hungry yard?
There used to be a 56' Sportsman named Subito in Oregon. She was rebuilt somewhere in the Portland area after a near-sinking in the Gulf of Mexico and an overland transport. Maybe you could contact Huckins and find out what yard did that work for the old owner?