KX wheel on a KDX??

I want to buy a 96 KDX 200 but it has a broken rear hub. Finding a kdx hub to fit is either hard or expensive. KX wheels on the other hand are more readily available, what does it take to put a KX wheel on a KDX? Are there any other wheels that will fit (CR, YZ)? Also if you have one that might fit please let me know.

Any help would be greatly appreciated.