The AJA was supposedly intending to compile a list of all Jockeys in Aus.
but doesn't say when - In the meantime they advise going here,

racehorsejockey.com.au

You can click on any State and get the lists, which include (a) by the
side of App. names - and scroll down to the same for country or whatever
- Unfortunately they don't give the claim amounts
(probably due to them constantly changing) but they do include riding weights.

HTH.