I just so happen to have one! I am parting out my '70 2-door
after learning that with only 37,000 miles on it, the front frame rail, dash and floor is all bent from a previous accident. The sending unit isn't much good, but the tank has about 10% surface rust underneath, but no holes or dents. If you want, I can include the filler neck, clamps and other hardware as well. Just so that we are on the same page, this tank drops in the trunk and is bolted to a lip on the floor without straps.
I live in Saint John, NB Canada. I would have to find out about shipping before I can give you a price. I might try to get you a pic scanned also.