A world cruise is looking economical to residence @ sea. It wont help with your swapping for a Bahamas home...but it can be planned well in advance (2016 sailings are already available) so you can all the details locked in.



My parents did the world cruise:
http://www.cruisespecialists.com/Vie...s.aspx?flag=11

and felt like the checked into a condo for several months with everything taken care of.