Its been done before - almost.
Air Kiribati wanted to send a pilot to operate a BN2 between Christmas and Fanning atolls. I was in a group of five at the time based on Tarawa. A volunteer was needed so four of us stepped backwards, leaving the new bloke to ferry the aircraft over.
Eventually, the Islander was replaced with a C212 and from memory the operation lasted about a year. Long time ago so I'm a bit vague on the exact details.