More pics
Sorry I have been neglecting the photo uploads, I have been whining about the truck too much.
Current external setup, the cab mounted roof rack looked awesome but drove me bonkers with wind noise so it went back to REI.
The half shelf was built from some scrap flake board, it mounts on the wheel "humps" in the bed and does not shift when wheeling. Mounted to it are the 10lb fire extinguisher, two first aid kits, spare PPE, my milk crate of misc junk, a collapsible 8' ladder is bungied to the front rail.
More of my "load" misc hand tools, 10 year old ARB pump, bolt cutters, pipe wrenches,shovels, sledgehammer, (note the 2/3 milk crate shoved under the driver's side of the shelf to prevent shovel blades from destroying the plastic bed,retired caving rope for misc hauling duties, .22 targets and finally horse treats for any nosy herbivores.
Behind/under the rear seat - 30' tow strap, receiver clevis adapter, clevis, 3" ratchet straps (my contractors are forever loosing theirs), tarps, eyewash station, more PPE, red flags for weird loads, multi- ball hitch etc....
Just in case you had to know what a geologist hauls around all the time...