I have an old Avon inflatable model AD-11, ser # 1496700. The squirrels have gotten into it while stored in my shed and have chewed a hole through the bottom of the boat. The opening is located on the flat part of the bottom, and is approximately 6" long be 2" wide? In other words, the opening is not on a seam, it's on a large flat area which should make it easier to repair. So the question is can this be repaired, and what repair materials do I need to do it myself? Can I buy them here on iBoats? Or, where can I buy them in Northern or Southern Ohio.