Peter Matich (Black Pete of Taupo Flying School) initially leased C185C ZK-CGG (freighter) during 1967, but swapped it for C185D ZK-CHS by December 1967. CHS was with the company until late 1978. Did quite a few hours in CHS when I worked at the Napier Aero Club for Black Pete in 1971/2
Thanks for the update on BUS at Wellington, Skywagondriver!
Blackburn