I recently acquired a 17 ft cedar strip canoe that was made about 20 years ago. It was stored outside for the last 8 - 10 years. It is structurally sound, but is in need of some TLC. Some of the finish has blistered and flaked off and it appears to have had additional pieces of fiberglass cloth applied in one area to make a repair. What is the best approach to refinishing this ? Should I try to sand everything off down to the wood strips or just down to the fiberglass cloth ? Any suggestions on methods or a point in the right direction would be appreciated.