I replaced mine
after we got her because the PO had neglected the cockpit drain hose, which cracked and filled the lazarette with rain. The boat thn tipped up with the trailer and rested on her *$$. The high water line went around the lazarette above the cockpit eats at the stern and lapped up to the bulkhead. The battery platform was covered at the aft end. The bulkhead was rotted. The good news is that this bulkhead is non-structural and loosly fitted. I use a combination of rechargable circular saw (small for easier access) and hole saws (4-5 inch) to remove the old bulkhead in pieces. Two cardboard templates and a lot of measurement points allowed me to make a new bulkhead in three sections, divided along a horizontal line, a lower section and the two upper sections where it goes up under the cockpit seats. The lower section went in first and was screwed into the original frame where possible. Remember, it doesn't have to be strong or particularly waterproof, it is just a divider between the cabin and the aft bilge/lazarette. BTW, I used 1/2 birch ply that I had in the basement. Once the lower section is in, I glued/screwed strips on the aft side to make a support for the top pieces, wgich were then glued and screwed as well. Voila, a new bulkhead. I finished it off with several coats of Bilgekote to make it white and to provide some degree of water resistance. Since the boat is so dry I was not concerned. That was last winter, and it has done a season fine. Just check the cockpit and anchor locker drains regularly as they are the common source of leaks in the boat. Good luck!
