Would this tinerary work for a DONE4:

CAI-LHR (stopover)

LHR-GCM
GCM-NAS
NAS-MIA
MIA-BGI
BGI-JFK
JFK-YVR
YVR-LAX (ground segment)

LAX-AKL
AKL-SYD
SYD-BNE
BNE-SYD (transit)

SYD-NRT
NRT-TPE
TPE-HKG
HKG-BKK

BKK-DXB
DXB-LHR (transit)
LHR-CAI

This will be the first OWE ex-CAI for me.