Look here
Gear Change Rod = £32.18
Gear Shift Apater = £18.85
Then you have to go Calsport as Performance parts is a distributor, not a seller. Then Calsport don't have them on their website, so they have to order from performance parts.
Like I say it's a real PITA. Took me a month to get a set of replacement heel plates for the Gilles on my RSV.