Hard to tell. Can you put some pics up and then we can help.
Yes it is hard to give a price quote without much more detail or photos. however, here as a ball park range.
as you described it. $10,000 to $20,000
as you described it, and none running but complete, but needing everything to be restored. $10,000 to $15,000
as you described it, running and driving with minor cosmetic work needed. $15,000 to $25,000
The things that bring up the value of the car, big block, 4 sp, and if coded for the stripe. additional items that help the price, ralley gauge package, sport mirrors on passenger side, leather seats, coded for rubber bumpers.
I am sure I am missing a few things as well.