So I finished assembling the feet. Here's a shot of the inside of the left boot. The PVC caps are bolted down, the hinges installed and there's a spring on the hinge to limit the toe's travel downward when I walk. There's also a metal brace on the sole to limit downward toe flex.
I also added a band around the outside of the boots so I could move the "pivot" for the toe sections outward so it looks more correct. Walked around a bit on the feet. PVC holding fine. This is going to take some getting used to.
"He who takes offense when no offense is intended is a fool, and he who takes offense when offense is intended is a greater fool."
"Don't take refuge in the false security of consensus."