Firstly, thanks for your help.

After further discussions with my wife around where is really important in terms of location and noting Gardyloo's point re price, we have modified to come up with the following itinerary, which I think can be done on a AONE4:

gib-lon-dfw-anc-dfw-yvr-jfk-eze-scl-ipc-scl-gye-jfk-hkg-pek-nrt-sin-hkg-lon-gib

Our main objective is to get to ANC, to visit South America / Easter Island and to visit a few SE Asia cities. (Happy to visit Africa later, and Australia won't be a problem as we are emigtrating there later this year). The second objective is to enjoy as much high quality F as possible whilst doing it (I think 10 of the above are), optimising miles and TPs etc within these constraints.

I would be grateful for a further view on the itinerary (especially on how I can get better A routes / ease of inventory within my objectives -thanks for the comments number_6) and also, how and where I can buy a ticket for use from GIB?

I am not being lazy honest!! I am just not very experienced at planning air travel and don't know the key workarounds.

Best regards,

Marcus.