Thanks for the ideas,tweaked the route again. Will definately think the price difference in buying via CAI.

MAN – JFK
JFK – MIA
MIA – MEX
MEX – LIM (via MIA orDFW)
Overland to SCL
SCL – IPC
IPC – SCL
SCL - AKL
AKL – SYD
SYD – AYQ
AYQ – CNS
CNS - NRT
NRT – HKG
HGK – SIN
SIN – BKK
BKK – HEL
HEL – CAI (via LHR)
CAI – MAN (via LHR)