---- Limited Category so not available for non members.
Wunwing,
That's probably a HARS policy, it has nothing to do with any limitation imposed by the CASRs.
In fact, one of the objects of Limited Category is to enable the general public to fly in aircraft such as ex-military machines --- generally referred to as Adventure Flights --- See CASR 21.189(3).
You do not have to be a member of any association, club etc. to fly in a Limited Cat. aircraft.
Tootle pip!!