Magnaman passed through Ardmore earlier today and offers these pics of his findings.
The Cessna 172M Skyhawk II ZK-DPN is c/n 63243 and was shipped into NZ aboard the Austral Envoy to become registered to Rex Aviation (NZ) Ltd at Ardmore on 08-08-1974. It has had about a dozen owner/operators the latest being Sunair Aviation Ltd of Mount Maunganui from 13-08-2014.
It was doing the AMZ run today.
The Bell 206B JetRanger ZK-HKQ4 (c/n 4456) was briefly N1208J before becoming JA6500 in early 1998. It was a Rotor Flite import for registration here on 14-10-2011.
It has been with Tukituki Bay Farm Ltd of Massey since March of 2012.
Lurking within Oceania was this Aerospatiale AS 350B2 N159JK c/n 3253 - Cancelled from the US register on 18-05-2015.
Below N159JK the full thing - thanks to Jetphotos.