One operator is importing AS332Ls (3) from the UK, probably ex Shetland Islands. Two are heading up north while one will stay in Victoria for a contract based in Essendon.
UK CAA G-INFO database shows that AS332L S/N 2023 originally registered as G-BJXC (during its flight tests and for delivery) on 31/3/82 then as G-TIGB has been transferred to Australia. It must have 40000 hours by now.
Blackhawk 9 is right, Australia is the dumpster for all the old aircraft. The average age of the Super Pumas in Australia is around 24 years and its 25 for the 76 fleet. CHC and Jayrow will have the newest aircraft in their fleets with the 92 and the C++.
VH-XXX while you are quite right about the age and hours limitations in some, not all, offshore contracts. Recently though, capacity has been so tight that these conditions have been waived until more aircraft become available.