I recently acquired a 1960 Arrowhead fiberglass canoe. It needs substantial wood replacement. Is cedar the way to go? I'm on a tight budget. Also, it's a flatback and the wood encapsulated in the glass at the transom is totally rotten. I can't dig all of the wood out, as after about 6 inches the wood is still quite firm. Am I going to have to cut out the fiberglass on the inside of the transom in order to get all of the wood out, or is there a better way? I am concerned about structural integrity if I have to re-glass the transom. Any help would be appreciated.