skip ive saw the problem of a two year old chassis on a new motor home. only dodge chassis were involved. mfg were stuck with the chassis when chrysler quit making them in 1978. there were several 1981 coaches with 1978 chassis. not a good situation for dealers. they had to give a major discount on those coaches just to move them off the lot. we made sure to disclose this up front before negotiations.
ive worked on coaches since 1967. that looks like a barth to me. i worked on one in perry ga last march at the fmca rally, so the shape and appearance look very familiar to me.
to the op, if you want a hobby, its going to be an expensive one.
its going to take a lot of money, spelled buckets, to get this coach up to a point where you can use it. but its also going to be a real education.
that said, there is a cool feeling of satisfaction to restoring anything back to original condition. just being able to say "i did that", is enough for me.
old cars, furniture, toys are all places we can put our money in instead of the bank.
it;ll earn just as much interest.