Which 440 to buy?

There's not much to a motorhome, some insulation, a little wood (burn pile), the sink and crapper, and the rest most yards will take. Those fresh are heavy in the big ones.

Unless you have a front end loader and big dumpster you will have at least a couple hard days work for two people scrapping one to the point where it is down to the bare chassis that can be sold for scrap. How much is your and effort worth I guess is the question.