Well from among the cobwebs of my memory.......
GKM
GKN ended its days in the Tari Gap with Ray Hoffman
GKO ran off the strip at Rakanda and was stripped of useful bits
GKQ scrapped in BNE due corrosion
GKR still going strong when I left in 85. Don't know what became of it
GKS ended its days in the Tomba, Mal Hawkes
GKT scrapped due corrosion
GKU mi lusim tingting, but might be the one Ian Holder took to Cairns
GKV scrapped I think
GKW sold to Pacific Helicopters
GKX still going when I left
That's 11........