Here is a in-service and in-country photo from the AWM.
A museum in Dili ET, 23 Dec 1999. The curators at AWM have captioned the Perentie as probably a ADG with Mag58s.
"Dili, East Timor. 23 December 1999. A panoramic view of the Dili Museum which is being used as a hospital by the Australian Army, part of the International Force for East Timor (Interfet). A number of the storage containers have a red cross on them. In the foreground is a Land Rover 110, with a MAG 58 machine gun on a pedastel mount on the front and rear, probably a RAAF Airfield Defence Guard vehicle."
Is it ADG or RFSV Mk1? Was there any difference back in 99? If it was ADG would've been out of Darwin and 396 ECSW?