You have beautiful young ladies on board. You also have a pressurize stove with a leaking valve. I would throw the S. O. B overboard and go with a non-pressurized stove for the sake of the kids.
I dislike pressurized stoves (flare ups).
The leak is in the tank, which is far removed from the stove and flame. Can't you put a alcohol fire out with a glass of water? That was my understanding.