CK, those are nice top end numbers. Another member,Fugazi, has the same motor and he reported that it was a bit sluggish out of the hole. Do you run it with a whaletail (Stingray hydrofoil)?

Blue, the ob mechanic will be able to give you a much better estimate of their worth, after he checks them out, than I could. In NY this year, there seems to have been a lot of twin takeoffs for sale on the used motor market. The counterrotater, if in good shape might be worth more to someone who needs exactly that. You might connect with that guy on ebay.