Wow! You are really transforming that space! I sympathize with the wallpaper stripping - we had a house built in 1860 once and when I started stripping the paper in our bedroom, there were 6 layers on all 4 walls AND 3 layers on the ceiling! You can sit back and be really proud of what you've accomplished! I have a suggestion for the middle room with no windows - you could look into a couple of "tubular" skylights. Even ONE small one would light up your room. We installed one in a room that was always pretty dark, and it looks like a round light that's on all day! That's something you could add down the road . . .