I recently bought a 14ft fiberglass hull (will post pictures soon). The hull is a 1969, and i am unable to find a name. I plan on rebuilding the boat from the bottom up. As i started grinding and cutting away i removed an old rusty screw from the outside of the transom. After removing the screw maybe a couple ounces of water slowly came out. I expanded the hole to about 3/4" to help let more water drain and drilled a few holes around the area. It is just a small area in the transom that seems to have water damage. The majority of the transom is dry and sturdy. Any advice? Should the whole transom be replaced?