Re: I am 26, and seriously considering moving aboard with my girlfriend. Any advice?
Have a look at a Nonsuch 33 or 36 for a very comfy liveaboard and cruiser in your price range. We had an Espar heater when we lived aboard in NYC for two winters. We were much happier with our heating situation than people with electric were.
Finished the circumnavigation in early February in Grenada. Have to work on a book project for the next several months so the boat will be waiting for next year.