What type of aircraft are you flying in?
Also must you land at Queenstown? There are two other airfields within 1 hours drive from Queenstown that are uncontrolled and have no restrictions or special requirements.
Alexandra and Wanaka are both good fields with sealed runways. At Wanaka beware of extensive skydiving operations on the airfield, and Alexandra is likely to have gliding on the weekends (including a very nice ka6crpe).