FYI - an update
CHC now has an Emirates lounge (contracted out to their ground provider PlaneBiz, and called the "Manaia Lounge") for First/Bus & Skywards Gold passengers.
It is apparently where the old NZ lounge was before it moved (although I never used the old one, so can't confirm).
Anyway, used it last week and it was fairly small, but comfy seats, plenty of reading material & drinks, food a bit sparse (although I did note that a fair amount of new food came out after I had selected my items).
I was pleased to see it up & running as the lack of lounge was one of the downfalls of flying in First/Bus on the CHC-SYD route. Not up to the Sydney standard (bubbly was Arcadia vs Moet for example), but certainly better than a voucher for the airport cafe!