I assume you are looking for a drawing like below. They are typically drawn by the Naval Architect who designed the boat. For companies like Beneteau you can contact Farr Yacht or Conq/Finot to get them. Hunter uses an inside guy to design boats. It used to be Glenn Henderson, not sure who now after Marlowe got involved. You might contact Hunter to see if they can point you in the right direction.
PS - They consider the drawing their intellectual property, and only allow the use of the drawings for specific purposes. Have a good purpose ready when you talk to them!