Well, all hope is NOT lost! We went to a neighboring town today to pick up some parts from the machine shop and there happened to be a motorcycle junkyard just down the street. They had two Cb500/550 frames and a beat up, busted up KZ tail piece. I was able to mock it up and sit on the bike and I think it will work afterall!
Will definitely need a little modding, but that's OK. Stay tuned.....