From the sound of Frank's reply, it sounds like my wife and I may be taking the same trip you are, albeit in November instead of February. We are taking Princess' Sydney to Auckland with a precruise tour at Silky Oaks and Dunk Island. We also plan an extra 2 nights at the end of the cruise in Auckland.
It's been pretty hard getting information from anyone that's taken these trips, even though they've already happened this season. It may not be much help at the time, but I'll post a review of the trip after we take it.
Bob (and June) Scott