Welcome to the forums!
I was born in central Calif. San Joaquin valley... we are retired, best thing to ever happen!
Live in the Northland now.... don't miss the valley heat or valley fog....
I would definitely say, just go for an Airstream! I would look at all of them you can get to... check out the rally schedule (one coming up in Oct at Lake San Antonio near Paso Robles) and see if you can drop by. You will get a chance to see some of the trailers and talk to the owners and find out what they like and don't like!
There is a good thread on "considerations for buying an airstream" ~ you should review. Lots of good ideas and thoughts. Mostly about newer 'streams, but many of the ideas apply to vintage as well.
Find your trailer and get out camping! It is great!
Mrs. NorCal Bambi (traveling in S Tardis)