Pat,
If you have to have an I/O, you'll loose some space in your desired length. I think an open bow might be in order!
Maybe a 1992 Hallett 210 with a full 8' beam ........?
Or if you want rumble seat front with true 24 degree V a 1995 CalCool short deck, only one ever built ........?
That Howard is down to $12,500. But it will be
gone is 60 seconds!