my son has just begun his working career. On the first day at work the lady of the house was clearing out her garden. He came home with a kayak. He would like to rebuild the boat. It is fibreglass, and he has split the boat like a banana in two. The polystyrene floats at both ends of the boat have to be replaced and the craft rivited all the way around. We have a beautiful river behind the house and I can see a lot of paddling up and down the river. What is the best way to put the two shells together, and if anyone can give me any idea on what sort of boat this is.