I got that one off fleabay.......bargain price of £150.....
Its Titanium and seem to be a rare as rockin horse as I've only seen one other come up...
I have seen a few similar ones but most are from either Italy or the States....
You could try
Harris Performance or similar as they might be able to put in touch with some who can......
JHP at Ducati Coventry maybe....
Telephone No 024 7633 5300
Just had a look throught my DP book......Part number
96843503B will buy you a pucka 749/999
'Titanium rear suspension con-rod linkage' basically a ride height adjuster......
Haven't got a clue how much but just quote that number to any Ducati dealer and they will tell you the good news...or not so good news where the wallets concerned.....
Hope this helps
XP