Looks in nice shape from the photos. It'd probably be worth the trip to pick it up. Bus down, drive back.
Something that old check for rust on the frame mounts and the section of frame that passes over the rear axel. Front frame often goes at about where the firewall meets the floor pans. If the frame is good, check the brake lines for rust, and the brake hoses for cracking.
At that mileage most of the mechanicals are probably still in good shape, only thing you'll want to do right away is replace the suspension bushings (Go with polyurethane replacements if you can swing it.) to tighten up the handling from cruise ship to land yacht.
Highway fuel mileage will probably be halfway ok - as long as you keep your foot out of the oilpan