I had the almost the same boat as Rob for 9 years (15', red), used it to move 80% of the materials for our place on Decourcy. I could load that thing up to the gunwales with stuff and it would get up to plane w/ a 30 hp tiller Yammy. Stable, too. I just never worried. After about 6 years, I replaced a number of the rivets holding the seats and the transom stiffener with ss bolts and nyloc nuts. One of the great features of this boat is that it has an internal (below the floor) frame system which I think really helps in a chop. Tracked excellent due to the V hull; never had an issue with the weldless system, despite some serious abuse...
Man, I miss that boat [V]