I personally wouldn't worry about additional windows. If we have a small generator (eg. Honda) on board with LED lighting inside we'll be just fine. I forgot to add - (1) a workbench with an outlet so we have a place to repair hand tools, (like broken handles), and other small jobs. (2) shelving space for mag-phone line reels, spare phones, and test/repair equipment. I'm sure John M. would appreciate it.