San Diego had a great salvage yard but it closed in the late 80s or early 90s because, like all California cities, the cost of industrial waste cleanup is just prohibitive and the value of land just got to great, so it was no longer cost effective to keep these wonderful places open;
I too am a haunt of arch. salvage sites; but sadly, they are all in the south and back east. Perhaps we ought to organize a group of us who want arch. salvage items; go to New Orleans where one of the greatest warehouses is, and rent a truck to bring back to Calif. what we want.
please keep in touch if anyone finds any place closer
also, the Rose Bowl flea market the 2d sunday of the month is a good place to find some things, but too high usually.