I didn't know that Warren sold those, his range has got a fair bit larger of late.
(They just re-located the ZBox part of the business. Not sure where to. ZBike is in Surfer's Paradise, might be there.)
The carburettor is listed as 'Honghua carby kit with remote choke', for $70AU+deliv.
It looks identical to the Spooky Tooth CNS, right down to the K&N style filter.
I notice that both cables, choke control and twist-grip throttle are included, but couldn't see if there's a kill switch on the twist-grip.
Did your's have a kill-switch?