CAI does seem like a useful starting point... Any comments of issues with the following ONE4 itinerary (or any equivalent routing which will maximise QF status credits/mileage):

CAI-SIN [via LHR]-HKG-NRT-HKG-MNL-PER-DRW-BNE-SYD-AKL-SCL-PUQ-SCL-GRU-LHR

Also - I seem to remember that there might be a problem with booking this in D when it comes to LA flights in South America (some rule which means travelling in Y on the QF/LA codeshare AKL-SCL, as well as in Y on internal Chilean flights, irrespective of a J cabin being available).

Any comments much appreciated.