Well...you have my complete attention.
Kind different...mono shock rear with a drum brake.
Right now, I'm looking at going with some Kawasaki Lester style wheels, with dual discs up front and the matching Lester style wheel with a rear disc. The KZ750 came from the factory with the dual discs up front, both calipers trailing the shocks, and all three rotors drilled from the factory. 36mm tubes....can have my trees milled out 1mm to accept the entire front end on my trees...and the speedo srive is mechanical off the front wheel....just screw teh cable on! Worst case, you have Motion Pro fab up a cable with the honda end so I can use it!
If I am able to get the bike I found with all this on it, I'll buy it, scarap it out and sell off all I don't want.
Then fab on some late model rear sets that have the master cylinder right on the rear set.
Then....if you convince me, maybe a mono shock rear....I don't know.....I don't want the bike to look modern.
~Joe