I have corresponded with PRF Racekits regarding Dibbles lead and this is what they had to say.
"The kits will be available approximatly the second week of February. The price of a full kit will be £350. There is no cut out for the side stand and I could not say whether a single seat unit will fit the bip subframe. The pipes (57mm) should not be a problem as it is a genuine copy of the factory Ducati Corse kit and their exhaust pipe is 65mm. At this time we do not offer a discount for Ducati members."
The £350 is for white, colours +20%.
This seems to be around the market price at present.
I will be buying a set in a few weeks - from whom I have not yet decided. But, if anyone else is thinking of doing the same perhaps if we all bought together we may be able to negociate a better rate.