Trash or Treasure? added pics....

OK, here's my opinion on value, assuming you can verify that it's a numbers matching engine and trans and that the 8 3/4 rear is still in it.
Low end $1500, High end $4500. A lot will depend on how rusty the underside is and if the #'s are there. Since the tag is missing, that will hurt value.
I think $2500 to $3000 would make me feel good about it if I were buying.