all, thanks again for your help on this. managed to get everything booked online in the end.
after re-thinking a couple of things (and seeing the cost benefit $7.5k vs $8.8k in Toronto) I decided to start my DONE4 originating in Oslo, especially given miles tickets were available JFK-OSL.
OSL-LHR-xHKG-DPS-xHKG-CAN-xHKG-AUK-xHKG-JFK-CLT-JFK-xLHR-LBA-xLHR-OSL
Thanks again, Jason