You can search the auction site for enlargers by "Distance Near Me" and name the California city your visiting. Pick up only auctions really cut down the biding.

I found a 4x5 Beseler with color head and stand, almost brand new for almost nothing. I already have one with a color head and won it just to get the stand. Did the same on another one just to get the cold light head. Be patient and good things will come your way.