Another thing to consider - it's already mid December. You probably should have done research and purchased an RV at this point that meet your criteria. Set up camp, tested things, made mods, etc. Buying/finding one now - especially the right one - may take some time, let alone shaking it down. Lots of RV have issues in their first few months of ownership - not the least of which can be furnace, LP, electrical and plumbing. In the right conditions if any of these fail you could be looking at a life threatening scenario, forcing you to find shelter - and per your earlier comment about cats, could prove problematic. Nevermind getting someone to fix the issue in a timely manner. I think your Plan A is risky and without a solid Plan B even more so.