If that was an old model like Yatra or Fuji then the generator must be different compared to the latest models. I think the better idea is to upgrade to the latest models if the price is the same or very close, but @andychris decided to keep his old model fixed somehow by Nakatsuka-San, because he's the only "official zyx". If the story is truth then i don't want to speculate on it.
But we don't know who was the distributor, because you can not contact Nakatsuka-San directly, and which model it was.