You could send it to Australia, RR. There's quite a few good repairers here.
Sorting the manual advance K2f mag isnt high on the list as I've got a BT-H that should get "Rusty" my super rocket mobile, but if you can recommend someone good on the east coast of the big west island of Noo Ziland, would be good to know...
I couldn't currently recommend anyone in the NZ north island.