After all the rebuilding work on my Nomad, I think it would be fun to rebuild that one. I got tired of it when I was doing it, but now I'm sorta tired of pouring foam and slinging fiberglass and resin.
I don't think there are any inner quarters available, but there are wheel tubs and the entire wagon cargo area. I don't know if the cargo floor brace is sold or not but the tailpan is. You might be able to save the doors with skins, depending on how bad the bottoms are. I'm not sure if they make door bottoms but they should!!!
Hope you got a good deal on it, because there's a lot of work. But you can make a nice car out of it with patience and persistence.