I assume that you are all aware of the excellent Australian on-line referencing website for both world wars?
If not, here it is:
www.ww2roll.gov.au
If you cannot access papers by name you should try just the service number.
You can also order copies of their service papers for AU$14.60 (£5-ish).
I've looked up a number of individuals and have only found one or two not listed.
Richard