I'm not technically in the South Bay, but I'm in Livermore which is about 45 minutes away (unless there's traffic as you know). I've owned a bunch of Fiats, still have a garage full of parts (engines, interior parts, electrical stuff, lots of spares like gaskets, seals, bearings, etc), but currently have just two spiders: 1969 and 1971. I rebuild spiders for friends in my spare time, which includes pretty much everything: engines/transmissions/drivetrain/differential/brakes/suspension/electrical, etc.
Look me up sometime, and I also make it down to the San Jose area every so often.