Hey velvet glove,
With those quals you should try, Airwork/Helilink who run the local Auckland rescue and police helicopters, or look at NEST in Whangarei who run the rescue helicopter up there.
Other than that, you might like to look outside of Auckland, maybe the rescue trusts in Hamilton/Rotorua/Tauranga/Taupo, all one company, or else Christchurch (Garden city helicopters)or Dunedin (HeliOtago).
Other than the rescue guys, there are very few operators that can use thoe quals, except for HNZ in New Plymouth, they run the oil and gas helicopters, all 139's, twin pilot ops.
Re the external load stuff, everyone gives it a go over here, so doesn't actually make you any more valuable than the next guy, the multi/spifr/NVG will make you stand out from the crowd I would have thought.