Finally made some real progress with the rockers. Have the front cab support, A and B pillar in measured place. Inner rocker and floor section then fell into place. Kick panel is cut in and ready to find its home, but I need to do something with the lower section of the firewall before I weld it home.
My cab support did end up being too long. I needed to cut the ears off that touch the inner floor support and re-drill the mounting hole. I will reattach the ears once the cab is off and I can tip it up on one side or the other.
With only a few tacks the pass side, it is far more rugged vs the rusty drivers side.
Measurements are spot on except for the door opening. Pass side has ended up being a strong 1/16 larger than the drivers side. I haven't hung the door to check gaps yet, but I think I can live with splitting a 1/16 front to back.