Late in the build for you but since you are going to begin running rigging, the centerboard lines are active all around the course so if you can do a ninety degree hole to drop that pivoting pin on top of the centerboard trunk as low as possible, then the lines associated with raising and lowering it will make sense. Lowering as though it could drop under its own weight when reaching the lateral pressure inside the trunk requires that it be brought up with a line, loop actually, for both up and down, along the trunk top accessible to the skipper or crew. The diorama sounds like a fun project in itself. PT-2A problem with what is sold as "Mahogany" is like saying candy bars: there are many subspecies and each with its own grain and coloration. If you order any ask the seller what the name actually is and then look it up. Happy sailing or I guess don't get too tied up at the dock to lose the fun. PT-2