Torsion box/Rocker/Support area questions

[Tumbleweed1C4]

I know this has been addressed a bunch, but I can't seem to find clear pics of what it should look like all done. Or maybe I am just slow. The PO did a crappy job of repairing the floor and rockers and pillars, and the torsion boxes are gone. A bunch of stuff is gone under there. The floor supports are homemade steel bars that cantilever off the frame and bolted to bottom of floor pans. Looks like they chiseled out some part of tub at rear of where torsion box would be. Front to back support looks like it is some sort of channel but I don't know if it added or what is left of torsion box. I don't have an assembly manual, maybe I should get one. I am not sure how to attack it.

First picture is laying looking up at driver side body mount where cab floor meets bed floor. That support rail at the outboard end is demolished/gone. You can see the rail that goes forward toward the front cab mount.

2nd picture shows the rail, where it terminates, the cantilever support, and what appears to be original style floor support.

3rd picture is the demolished whatever-it-should-be where I think aft end of torsion box would be at B pillar/front of bed

4th picture is this same area on passenger side

5th picture is passenger rail and cantilever support looking toward front tire