70 dart R/T???

I agree...

A car like that might be worth 100K restored, it's not a vert Hemi E-body.

Being that it's a basket case as described, you'd have to do it because you want to, not to make any scratch. It would cost more to restore it than it's worth finished.

All that's based on the car actually existing.

I agree. Rock solid documentation (broadcast sheet, window sticker, IBM card, owner trail, etc, etc) MIGHT push it to $100,000 IF the car actually exists and IF it was/could be restored.

IF the car really turns out to be as portrayed, I would like to know more about it. It would be a nice surprise for the hobby to find out a car like this was actually built.