As above, obviously on the motor the clutch slave cover is in the way of where the sprocket adapter goes. What have other people used? Some sort of spacer arrangement?

Ive seen stainless threaded rod used with tubes over them with an extended pushrod to clear the adapter.
We did a simalar thing on beppisignoris car wit the honda engine/

Nova is doing an slavecylinder that fits.
I made an adaptorplate, distances and adjusted the length of actuator rod.
My slave cylinder is an aftermarket unit for Ducati.
Rescued attachment DSC_3460medium.jpg

which model ducati ?