OK, more pictures. Went back to look again today and see what battery I'm going to need (terminal placement...etc) and took a few more pictures.
Here is the above mentioned rot on the drivers side rocker. Contrast this with the fairly solid one above for the passenger side:

Drivers side with the rot on the rocker:

Still, in spite of all the cancer, I'm looking forward to getting it home. Really, just a matter of them cleaning out the bed. Even the Tag/License place is here in town. Soon, will be posting in the "project" thread. Initial plans are to clean it as best I can, (obviously), take a good solid (pun intended) as to how bad the cancer is, and then going to have to make a decision if it's worth saving this cab or not. Right now, leaning towards replacing it, but until that happens, I still want something to drive around here with on my days off without any lengthy road-trips. One of the first stops will be the local junkyard for a window regulator for the drivers side.