http://www.reactivesuspension.com/ Piggy, Gareth at Reactive rebuilt my Ohlins rears and they are the mass produced ones that came on the yamaha1300, they were not designed to be rebuilt, but he found a way.
Piggy piggy piggy the guy you want is joe pit pm me and I will get his number for you. He can sort almost any shock and he doe not charge the earth. He worked for ohlins so knows his stuff. Rebuilt my Harris white power for 70 quid