I own a house boat, its pretty greay, I call it a Float house because I'm from Canada, You Americans call them house rafts, My boat is a shanty boat. Do you have interest in house boats? 
I have never been on one but would really like to.
Mine has autopilot and everything. Many houseboats are more than capable of operation under their own power. 
That sounds awesome for a houseboat. Does it have plumbing?
Yep, there is a series of pipes, valves, plumbing fixtures under the deck that leads into a tanks to contain the fluids.