What he said^Nobody mentioned the obvious rust issues. The rear of the tub will need a lot of work. I would bet there's more that can't be seen in the pics. Just be sure you're aware of what your getting into.
If you are a novice with a wrench than this rig could easily spiral out of control especially if you plan on "restoring" it. Too many of these are for sale because the owners got in over there head and their wives want the garage back. If you don't mind the visible rust, the frame is solid and you are fairly confident you could get it running I would pay $2500 for it as is.
With that said, keep in mind some seller's lingo that could easily stray you from the path of a good one v a not-so-good one. "Just poured some gas in the carb and it fired right up!!!" A running vehicle is WAY different than a good driver. You have brakes, electrical, clutch, transmission, tcase etc. etc. that need to work properly to make it road worthy. All of these components can take time and plenty of $$$ to properly go through depending on what it is they need. "It ran when I parked it" is another one that you should take with a grain of salt. The longer any vehicle sits the list of crap that can go bad gets bigger.