Bought a 1970 GMC suburban 4wd for $300 yesterday.

[71stroker]

Hey guys, Ive been around a while but never had much time to post. Yesterday I bought a 1970 GMC factory 4wd suburban minus the motor for $300. Thats almost free around here considering it has a lot of useable parts. I got lucky and was the first person to actually show up to look at it. Some guy from New Jersey flaked twice and never sent the money so they resold it.
It was a factory 350 v8, tailgate with the lift up hatch with an auto trans/ 205 t.case. It also had roof mounted a.c, power steering and I think power brakes. It now has a disk brake front differential in it but other than that its pretty original. I forgot to look at the options on the glove box so im not sure what else it came with. I havent got it home to thoroughly look at it yet so Im not sure of the extent of the rust but it was something I couldnt pass up. The front clip is almost perfect except the bumper which is the main reason I got it. I have a few questions I was hoping somebody could help me with.
First, how common is a 70 gmc 4wd suburban? Few and far between around here. I planned on stripping it but dont want to cut something up that was worth saving.
Second, are all the models with windows called suburbans, gmc and chevrolet. The old guy I bought it from insisted it was a gmc wagon. Sounded kinda funny to me.
Any help would be much appreciated. This thing will have to be gone or parted out quickly due to my limited space. I have five other projects in various conditions strung out between mine, my parents and two friends places. No room for more vehicles. (does that make me a pack rat) LOL. Thanks in advance for any help.