Cannondale Headshok servicing

Does anyone know anywhere in Perth that has experience in servicing
Cannondale Headshok suspension units? My unit has been reasonable well
looked after but never serviced properly and as I've had it about 10
years a service is well overdue! I've found a couple of web site
giving DIY instructions for servicing them but as the bearings will
almost certainly need replaced and are hard to get I thought I'd let
someone else have all that hassle! :-)

Cheers!

Graeme