I have a crack in the hull of my 1984 CC Osprey 222. It's looks like it is on the left edge of where the gas tank is. Could it be a broken stringer? The crack is about 3 ft long. I'm assuming that I need to take out the tower, CC, seat/baitwell. Cut the floor and remove the gas tank. I'm pretty handy, but not a boat builder. Is it something that I can do with some help and how long should it take?