The cool thing about thinking about this sort of thing is that in the world we live in there is a real need. Anything can happen, and probably will. It's good to have a location to escape to also, I have many, not owned by me, but I have access to and the means to get there...Having a 4x4 is an essential thing for me as it grants access to places a 2x4, or low-slung car can't go.
Seems like you have some good plans in place...Everyone should.