I was looking at this and the wall feels rather thin. Thinking about adding a fold down aft facing seat on either side of the cabin door, not sure if it'll hold.
Rather not have support legs but if it's not strong enough, then it'll be my only option? Couple ideas
I can also recommend quality bean bags. I have two Ocean Tamer bean bags. On the long runs to the Gulf Stream they are amazing. The best sleep you will get on a boat. I keep them up in the birth when not in use.