Wow, you have a pretty open space that you are filling. Sounds like the E50s fit the bill nicely.
My room is 9 1/2" wide by 23" long. I have just enough width to put two 3-person sofas facing front- one sofa behind the other.
The E100s are probably overkill for the room- but that's okay.
Hmmmm.....now you have me seriously lusting for some E50s. I wonder how difficult they would be to mount on the walls......
All of my fun WAS powered by an HK AVR 7200. Hopefully this weekend it will be repaired. If not, I will be seriously sad....