Steel brake lines and frayed passenger caliper hose done. Fuel lines had been replaced with poly and spliced into the steel lines on the last couple inches, did not look good. Replaced them. Oil leak is down to a 2" puddle overnight.
I'm going to drive it around all weekend. Barring any issues, I'm calling it Big Dogs ready.
Bed is probably not worth salvaging - rot over both wheel wells and starting on underside. Also huge dent/tear on passenger side rear and tailgate is F'd. Works for now, but will be keeping my eye out for a complete, color matched one in good shape.
Rocker panel seams are getting crusty. I will inspect further, but the "hit it with your fist" test did not indicate the panels were too bad inside. Considering patching the the seam in a couple spots and doing bedliner, maybe gray (not a huge fan of the black/white look I've seen like that on these.) Floors need to be patched from the frame out on both sides, otherwise OK.