Thanks Andy, We bought it just for the reason you are impressed with it. Don't have photos, but will try to explain as best I can.
The frame under the bed has 4 angled mounting points... like an L on it's side to level out a mounting point,also 4 squareboxes at the corners to mount the bed to frame.All the above have been welded on to the frame All 8 are secured with carriage bolts. The running boards also have 4 L brackets welded on. The cab used the original mounting points per chevy frame. The front and rear are original 64 wagoneer dana 27 and dana 44's. Be careful here I think after 1972 the wagoneers got wider. I purchased a 72 wagoneer front end dana 44 with power steering and disc brakes to swap in. Uses 79 **** f150 rotors 5x5.5 bolt pattern to match the rear dana axle bolt pattern. The drive train is a 72 jeep pickup 360amc, th400 tranny. To change to a chevy engine I need a chevy th400 case and swap the tranny guts. Got this bit of info from Advanced Adapters. The amc bolt pattern on the th400 will not match up with a chevy engine unless this is done. Right now the 360 is running great but would like to switch to a chevy engine because of parts availibility. I guess it is time to take some new photos of the pickup and some of what I tried to explain. Will get my son on it pronto. Have any more questions e-mail me and I will give you a phone number to call me.