The way I count the votes:-
Option 1 and 3 have 4 votes each ,
Option 2 has 14 votes and is a clear winner.
A good thing about option 2 is that it would be easy to change the rudders and you have option 1 or vicea/versa. The spade rudders a very cheap and dead easy to make.
Also, external pivoting boards are easy to install in the boarless option, if needed.
It will be a cat with skeg and deep rudder, then. Make sure no monkey is hurt by the central reinforcement tube when tacking an jibing.
