I'm building a dugout canoe as we speak. it should do the job. I'll be there in less than a year, I expect.
As I said, I'm confused exactly where the plane image is. I tried Google Earth and I couldn't see it. But I'm more interested in Noumatong, which I believe I did find the image of. If there is no actual plane, I'm no worse off than you are on Niku with no plane. Since I can't seem to sell my hypothesis here, let alone get any help, I guess I'm on my own at this time. I suppose if your friend on Nonouki had any info at all about old, old rumors he would have told you by now. So I would say if and when I do go there, I would need some time to get more info and make up some kind of plan. I'm going to Peru soon and will be there till July 14, so nothing much will happen till after that.