Since NADA is pretty weak on boats, the best thing to do is to look at a bunch of the CL's, closer to your location the better. IBoats, "The Boat Trader" and of course ask several Sylvan dealers what they would sell it for or better yet ask them about a trade in. Take the trade in price and see how it compares to what’s on the market, it should be 20 to 30% low.
Build a man a fire and he's warm for the night. Light a man on fire and he's warm the rest of his life!