I’d cut the guy some slack. He’s clearly invested in this journey, literally spending thousands of dollars and decades of his own time.
Personally, I think he should be free to do something reckless if it’s only his life at stake. After all, stores sell paint and there isn’t a law against drinking the stuff. It sounds like the only thing he needs to complete the trip is an escort vessel in case the trip goes poorly. Maybe one of us can convince him to take us on his trip.