Hoskins
There is a Missionary group just south of Goroka, with a hangar at GKA and operated a coupla C90s who looked after my C185 when based Hoskins 5 yrs ago for a month. No problems then. I was in the lodge at Kimbe 30k away. There was fuel there. Mind you in those days Airlink provided a sterling service to Tokua, Lae & Moresby. Some Lapun may remember the name of the missho's. I stayed with a German family who had the Kimbe Resort.