I too, think that this is the place to list it and pictures would be appreciated. I was lucky enough to have an extra hub when we went classic racing back in the day (1997-2003) as we laced it up and always had new rubber, at the ready...all we had to do is take off the one on the bike, pop on the spare wheel with tyre and rip.
If we went back to classic bike with a CR750 type machine, we would probably run a little rear disc that worked, as that Honda assembly was a horrible piece for stopping, no matter what special shoes we had and we even went to trouble of truing the hub liner on a lathe and had shoes re-arched.
When you get a chance to see it in person, take a very close look around the spoke flange areas, as these real Honda parts cracked there, all the time.
KOS