If you want the Older Body Style 72-80. I would shoot for a late 79-80 model. Pre Late 79 Build trucks have the NP203 Full Time Transfer Case, and the full time Dana 44 axle with the horrible wheel bearing design. The later Trucks have the NP205 or NP208 Part time transfer case with Lockout hubs on the front axle. The nice older ones around here are starting to bring top dollar, but I would say you may score a decent truck in your price range.