I did this job about 15 years ago so my memory is somewhat lacking in details but I do remember that it was so dry rotted that the original bulkhead came out in pieces and was unusable as a template. I believe I used the build manual for the dimensions and was able to chip out the remaining ply from the original fiberglass tabbing. I used 3/4 marine ply and then split the new bulkhead down the middle for easier installation and from there it was a fit and cut job. Once everything fit, I covered the two halves with a white formica and glassed them in with West System to the original tabs. The seam was then covered with a teak trim piece running down the center between the two doors. I would recommend coating the new bulkhead with West System. I used varnish and it led to some dry rot problems in succeeding years which I was able to fix with Git Rot. I have also since found a source for ribbon stripe mahogany veneer and will use that if I have to do this job again in the future although the formica looks pretty good.

Have fun and keep your shop vac handy.

Werner

Mike, thanks for the idea. I do believe, however, I can get mine out (if I cut it in half first to remove, thereby verifying the idea of two-piece install) to use it as a sufficient template. That should solve that problem.

Michael, we're now facebook friends, so please photo document as much as possible. 

Thanks, all.

Steve