Jim, you got me thinking!! That room I had in that picture was made by the previous owners and those walls represented by the black lines are just framing and drywall that they put in to make bedrooms. I can literally climb across the top of that drywall. Thus, I an also remove it and rebuild it in a different configuration. The would allow for more usable space. The knee wall is only about 42 inches high. I can change the angle of that side wall/ceiling piece by changing the stud work. That seems like a really good thing to consider is just making more usable space. The area between the original walls (black lines) and what would be the new walls (red lines) is right now just dead space. This is probably a really good idea and I have Jim to thank for making me think about it.