DeLux,
Good boat. Know a guy who ran his to the canyon regularly. Cats are 6 or 8 cylinders? 8's are tight under the boxes. One point, a 36 Chris Craft I run just had to have the oil pan changed on a 8 cylinder cat due to hole in pan from exterior corrosion. If engine sits deep in bilge, you may have the same problem one day.
Capt Tom