congrats alan

unfortunately, no B10s were sold in USA, and I know of no gurus except in Japan and Australia. silvia-specr is the only american I'm aware of that owns one.

A-series specialists are few and far between, there are no shops. There are some racers/machine shops with parts, but I don't know any in LA/LA or LV.

You might make contact via email or PM with our club member specialists like matbighat, leosnake200 and rallytwit.

Watanabes are extremely expensive here (e.g. used $800/set or higher), there likely are shops in LA that have them.

There are 5-speeds in LA wrecking yards $200-$350, but are getting scarce. Maybe you'll be fortunate and find one.

You can also find Electronic Ignition distributors, very common for $35 to $100.

You might stop by the SR20 Store in Gardena, the owner I'm told has a 1200 ute with an SR20DE in it.