You can use the wheels, hubs, bearings, axle nuts. Probably some gears and other parts inside the housing. I wouldn't tear it apart, though. Just keep it in case you want to go back to original. Sometimes a narrow front is better than a widefront. If you've broken the housing, then salvage what you can.
Since this is a high demand item, a complete front end change-over from a salvage yard would be around $400.00 plus freight. If bought sight unseen, which I wouldn't recommend, expect that there will be welds, bends, wear, etc. You must have the correct frontend steering gear and housing assembly in the package. A Model C will fit, but is different.