Well after a lot of trouble trying to fit routings into our plans, we have changed our DONE4 to a DONE3.
The routing has obviously changed a little, and thanks to the advice on FT I (think I) have avoided some shortfalls in my original plan.
The only thing we are waiting for is the confirmed date of the event in IST- which means the cities will be the same, but the route reversed.
Routing is: None DONE tickets in italics
ICN-HKG-CMB-HKG-LHR[
LGW-FGO-LGW]-AUH-LHR-IST-YUL-DFW-ANC-SFO//LAX-SJU-JFK-[
LGA-DCA-LGA]HKG-SIN-[
SIN-BKK-SIN]CMB
-HKG-MEL
This gets us back home form Korea, to Australia, and fits in about a month worth of travel while our dog is locked up in quarrantine

in SYD
It sadly leaves me about 4000QPTS short of EXPlat, with some economy domestic Qantas trips in Australia. Any tips on how to cheaply add about that many QPTS would be greatly appreciated.