Reg Adkins in "I Flew for MMA" (P258) reports a QANTAS flight with a total of 715 people on board. Additionally an F28 crewed by Graham Hewitt and Rob McMillan with 115 passengers, another with 128 people, and Harold Rowell and Colin Hey with 98.
For many years a transcript of the comms with the first C130 into Darwin and Tennant Creek FSU existed in the Darwin FSC. (Everything had had to be hand typed and telexed to Canberra). I don't if it is held by the Airservices Library.