Only person I ever saw with one on his 916 was a dentist. That has to say something, but I'm not sure what. Unless it was cast from amalgam, I suppose.
Sent you a PM Cranker as I have a spare. Also have Ohlins rear shock and Ohlins R&T forks along with other parts if you're interested?
Unless Kato knows the same guy, someone has advertised one on a Ducati Facebook page. It's a +25mm ribbed swingarm, with a mag road hub, linkage, and cnc rocker. He wants £1650 for it I think? I've asked for his number.
The bloke selling it is called Chris, lives in Germany. He's a top bloke who I've had kit off before. I think his name on this forum is Testastretta or something similar. He was on Ducatisti UK with his trick 998RS.