Dan, I agree with Sunspot Baby that it may not be a good idea to modify bulkheads or structures molded in to the hull
. You may still be able to do some modifying to meet your needs, however. We have 3 queen sized berths in our cat and really only need one full time and one part time for guests. We converted one of the staterooms to an office/storage area. I removed a sink and built a desk in its place with a pull out tray underneath for a laptop
. Above the desk, I put a shelf for a printer and some file organizers. I took the mattress off the berth and used that space for a microwave and some plastic clothes storage
drawers. Eventually, I will redesign a little more to make more storage
areas where the mattress used to be. Hopefully, you can find things to do with your extra heads/staterooms to meet your needs.