Maat is a good software too.
Rhinoceros is not free
Loa? Beam?
Books Also see the following book: "Sailing Yacht Design:Theory" and "Sailing Yacht Design:Practice" by A. R. Claughton (Author), R. A. Shenoi...
Look in the book "Principles of naval architecture vol II" (SNAME).
Weight estimate Look in the west marine catalog