Cab appears to be in good shape and is worthy of a restoration. Here are some questions that come to mind which would help many of us answer your question.
1. what engine does it have?
2. is the tranny a 4 or a 5 speed. You mentioned both.
3. what does he mean by the word "controller"?
4. you said the bed has a bad floor, easy enough to fix but what about the hoist?
The thing you said about not having any room for it could be the killer. If you live in an area where folks or the cops object to something like this sitting on the street then you definately need to pass on it, IMHO.
