Well, the good news is that you will be familiar with all of the systems when you finish. LOL. Mine does not have a genset and I can't figure where it might go except right in front of the two motors against the bulkhead, but it would surely be tight. The upper bunks are simply the backs of the lower seating. The backs are hinged and lift up and are supported. I am 1000 miles from my boat right now, but by the end of the first week in October, I should be able to get you a photo or two. Ed, my name is bill.