Paul, Is the front of rocker panel to front of firewall dimension what you're looking for? You were on the thread where I posted that dimension
HERE.Yup, took some fenagling but I managed to get it to just under 8.5" today. The rearmost part of the sill almost doesn't reach the inner rear corner. Planning on reverting the cab to horizontal tomorrow (it is on its back now) and moving it back onto the frame to see how things look and check door gaps. Sill, toe panel and parking brake support all held in place with bolts/screws right now.
I will take some photos in the morning.
Thanks for all the input
Paul
