Go to the mooseracing.com website. They sell a kit for reasonable price. Possibly CJdesigns too, but not sure, can't remember. Big on line houses should have access to the mooseracing part numbers too.
In my experience these can be hard to find over the counter at bearing houses because of a non-std ID or OD, can't remember now (tequila will do that), but its not you and your searching! Edit: oh i see you are in OZ, no wonder you are having a problema.
"Hells AL is right."Zuber "Bad roads, good people. Good roads, bad people." Mama Espinoza
“Ride first, tart second. Sorry bro but that’s the way it has to be.” Cbrit, 2008
“You gas it where I brake!” trackday passenger, Thunderhill, 2005 "Especially since he's one of the fastest riders on the planet, on any surface!" Earwig, 2014