WIW '72 340 'CUDA

There's only one way I would attempt a resto on a car in this condition.
http://www.dynacornclassicbodies.com/1970-dodge-challenger-coupe/
I realize that this is for a Challenger, but I read a while back that they had a Barracuda coming soon. Might be worth a phone call to see if it's still a "go" and what their timeline is.
I know it's pricey- but when you add up all the individual pieces this car is going to need, and the time, materials, and other miscellania that would be required to get it to this stage, it ain't such a bad deal after all. After all the metal replacement it's going to need, there probably wouldn't be any body numbers left- and since it will always be an incompletely documented car anyways, a Dynacorn body may be a good selling point- it eliminates the chance of hidden dicey unibody work in the buyer's eyes.
Otherwise, push it back into the shipping container for another 10 years until we get to the point of being able to 3D print a new shell...
Please excuse my cynicism, but I'm from Wisconsin and I know what an ordeal rust on this scale is.