DavidAttached is a photo of my back room finished.What you decide to do should depend on how you intend to use your boat and how much time you spend on board. I am a liveaboard and I intend to go cruising for a few years, so I spend a lot of time aboard!To answer some of your comments:- The bolts at the deck/hull connection are still accessible: all you need to do is remove the top planks that are held by 2 or 3 screws.- The deck/hull join is very strong: I don't see any reason to try to get to it. If you have some leaks, it is easier to get to them from the exterior side of the hull.- I added a beam along the transom to take the reaction of my auxillary rudder windvane, and reinforced the transom to hull joint (highest stress region).- About the extra weight: The extra weight coming from the wood: may be 50 to 75 lbf.The extra weight from the new bronze ports: give another 50lbf. To put numbers into perspective, the O'day 37 carries 1250 lbf of water. If I were to race the boat seriously I would have considered it, otherwise...- The real question is wether you are willing to put in the time (or money) that it takes to do the work. It simply depends how much time you spend on your boat. For us it was REALY worth it.