You drive for a living? Thought you flew for a living?
Sounds like you are giving it alot of thought. The added info does change some of my opinion/thoughts. But, I still think it will not be all fun and games. There will be no relief from the cramped quarters, potentially noisy neighbors, busy RV parks etc (depending on where you end up permanently setup).
Max time you're going to do it being a year is a huge difference maker. Alot easier to handle it for a year, than indefinitely. Renting the house for a year, with a plan to return is a lot easier to manage as well.
I think you're additional info will probably change other peoples minds as well. But, the one thing that will not change is the amount of living space you have. You sure will not have the conveniences and comforts of home. The three dogs I think would make it much more difficult, but that's me, and Im a dog fan.
Mike