Re: can i make more living room on my boat?
While SloopJonBs comments about ruining the value of a boat are relevant in many cases, I don't think it applies in the OPs situation. For a boat with minimal value, you might as well do what you want to make it livable for you.
The July/August 2012 issue of Good Old Boat had a great article about an owner who took the quarter berth out of a Coronado 25 and made a bulkhead to bulkhead galley on the port side. His guiding principle was, "if you can sleep well and eat well, everything else is easy." Given that he invested less than $1000 on the initial purchase price for the boat and is now cruising full time, he seems to be getting plenty of value out of his investment.