We had a mid 70s Cal 2-27 about four berths from us that sailed around the world. It was quite roomy for a 27' boat and well setup for living aboard and offshore cruising. Nice underwater shape too!
I think one could ven take a shower in the separate head!!
We just boat 45' 1974 power cruiser for 12,500 with shower. The boats below 15K are available if you just do your research. You will be surprised how many boats in this price range are for sale. The time to buy a LA boat is now!