did someone say IH?
I have had a dozen in the last ten years and there are more to come. As far as swapping yours to a 2wd, it is actually a piece of cake. all of the 4wd's had parallel leaves- shorter in length than the paralell leaf 2wd set ups. If you can get a dropped I beam front axle out of a 1100D or 1110 from the same year range (69 to 75) you can set the front end right down on it. It is literally bolt up. You can spring under the rear suspension, and for more options there, you can flip the rear spring hangers. Using a ford 9 inch rear out of an f-1oo is a good way to go as it should be close to the right width drum to drum. all of the 4wd stuff will unbolt and is easily removed. something I have always thought would be cool is to section out the back doors and make an ih version of a lowrider blazer/bronco/ramcharger.
here is my binder- also a 72- but with a custom grille. There are others in the fleet as well.