A little background: A friend of mine has an old boat, don't remember the make, but it originally came equipped with a 260 Ford engine. The original owner of the boat, either a friend or relative of my friend, was unhappy with the performance of the boat with the 260 so, as luck would have it he had a friend who totalled his '70 Boss 302 mustang. They proceeded to yank the Boss motor and swapped it into the boat after getting a custom, reverse ground cam installed. Now my friend wants to get rid of this motor but is clueless as to its value. He says it will fire with just a bump of the key!! How much do you folks feel this motor is worth?