Quickly checked how one travels to Manihiki and apparently it would take me between 35 and 45 hours to get there from Luleå and the airfare would be 45,000SEK ($5625). The living on Manihiki is really cheap though, 225SEK ($28) for me, Johanna and Tovah with all meals included in one the two basic “rent a room” places on the island. No hot water and almost no electricity but probably as much swimming as one might want 🙂