AEQ is still alive, now carting freight in the Tonga group. Registration was changed to ZK-WKA for its NZ sojourn, carting high value seafood out of Chatham Island to NZ, some, live crayfish, for onward shipment to Japan. The IO720's were up to 2,400 hrs TBO with some going even further.
Just by the by, the registration chosen by the owner, for his own operation, was WKA, for white knuckle airlines.