Originally Posted by
teledude
Use a Joker, GUF2 and 2-4-1 to do it for 200k avios in F mate
LHR-SIN-SYD then cash to AKL as above

I suspect the op as a silver may find it a challenge to use a joker or GUF. I wish him luck trying to find normal award availability on LHR-SIN-SYD.