Well much to the chagrin of some of you I did end up buying a 31' 1979 International. I worked on it for a month before I took it up north. I caulked more in a month than I have my whole life. I blew foam insulation in every crack and hold I could find. I tightly fastened up any loose belly pan I could find. I mouse-proofed it as much as I could (though I still have a big vulnerabililty with the slots for the pull out step). I plan on getting a roof built over it (with no sides) to protect from the rain and snow.
I liked the old RV idea the best for an instant camp for several reasons. One I could just plot it down (after a month of repairs) and have heat AC, hot water, shower, etc.
Two, the site has no power. With the AS I only need to run my generator long enough to run the well pump to fill the fresh water tank and to recharge my battery. I can heat the place all night with the propane furnace and
12V.
Three propane refer which still works (cold food, no generator).
And four, since I decided to go with an RV, why not go with the best.