I have a 1979 Powerwagon Warlock, 318, NP435 4 speed. It is a good truck and a blast to drive, always get looks. It will not hurt to go look at the truck just pay attention to the rust. the floors are easy to replace but if the underlying supports are bad, run away. The cab corners, rear cab supports, the roof drip rails at the windshield, and the intersection of the A pillar and floor are the first places to look. You might get lucky, I've seen some nice trucks from the Pacific NW.