I showed the pics to a very good friend of mine that completely rebodied a '67 vert over the last couple of years, mostly because he couldn't bring himself to crush it. It was an original 6 cylinder car, if I remember, and he ended up replacing nearly every piece of metal on the car with the exception of the cowl panel and firewall (trim tag, hidden VIN area, door plate area) that represented the originality of the car. What an absolute hell he put himself through, for the sake of saving a Camaro.
His first advice to you - junk it. He corrected himself a little, mainly because of the project status you mentioned with your son; he also said having done this once, he would never do it again under any circumstances.
The upside - the '67 is really shaping up into a killer modified car, I can't wait to see the painted car. Small block, runs fabulous, shows what dedication does in the face of finding your car in worse shape than you imagined. Good luck in your future build - keep us updated on your progress (or your decision).