Kinda happy I don't have a working truck right now...
There is going to have to be a pretty good collection of "The Rest" of the parts that are loose around the place, to start to saying that the parts are all accounted for. Like half the vise is not shown, just the base and back jaw.
Seeing the overarm that the vertical head runs on, would be confidence inspiring. as well as apparently, whatever box all the fasteners, missing handles, and the like, ended up in.
Sorta reminds me of what I read about Race Car Engines. When asked why they strip a new in box engine all the way down to the block, and then put it back together, the guy asking, was told, "The engine comes assembled, because that is the easiest way to make sure ALL the parts are there!" followed by "We strip it and make sure it is Assembled RIGHT!".