Regarding the daggerboard placement: This sail is going to have a rather wide square-top, and the mast will be raked back more than in the picture (mast drawn vertically in the picture for simplicity). If someone knows a better method of guesstimating the CoE of the sail, and thus the proper daggerboard placement, I'd really appreciate the help.

Regarding the rudders: I have Dotan's Sampson 25 rudder system that will go on this boat (or a H14 rudder system). The rudders in the picture are likely not drawn to scale.

Regarding the tools I'm using: I don't know how to use CAD, but colored pencils and rulers I can handle!