Hey Neville.
Would be interested to know the depth of your knowledge of the economics of the 777.
If it isn't good for aus/asia, perhaps you should be selling your expertise to Cathay, Asiana, KAL, China Southern, Malaysian, and Singapore and PAL. All of whom periodically operate 777's to Aus and NZ. Could be others too, but that's probably enough to make the point.
FWIIW. 777 payload/range capability shifts, around the 12 hour mark. Give or take a bit for the various models. ( Longer, payload drops to accommodate the fuel : Shorter and payload becomes landing weight limited.)
Maui