It is unfortunate that I am planning on this trip in Feb/Mar and LX will not be joining till Apr 04.
I have made some changes to NA itinerary.
Regarding SWP - I agree upon AKL-MEL segment.

SIN-HKG-BOM-HKG-AKL
AKL-MEL-PER-BNE-DRW
(Surface DRW-SYD; can I purchase this extra segment??)
SYD-JFK
(Surface JFK/LGA-ORD)
ORD-LAX-SJU-ORD
ORD-HNL (Surface HNL-LAX)LAX-ORD
ORD-LAX-LHR-DXB-LHR-HKG-SIN

This is approx, 63,000 status miles (+ 5200 miles for surface segments)

This is lot of flying in a month's period.