Pretty hard to find a shop that does out of pocket work and is reliable. I have two shops in mind up here in Santa Rosa. Scott at
chucklesgarage does lots of custom work, he posts mostly on Facebook or instagram if you want to check it out. He's fairly busy, I've stopped by a couple times to check out his compound turbo Ford F-1 and it's pretty sweet.
The second shop I have not had any dealings with but have seen some nice 1st gen 'cuda's and camaro's there. He's just starting back up after the fires took his shop so not sure how ready he is to work. Johnsautobodysantarosa.com