Just an update, I decided to finally go with it and drove down to pick up the screen this Sunday. The screen is massive - way bigger than I imagined, even with the measurements. It is absolutely ridiculous! Sure, this is not the best screen by a long shot, but this purchase by itself feels like a pivotal moment in this whole hobby. Things are getting more complex and sophisticated. Building this thing piece by piece has allowed me to take time and consideration each step of the way. Many thanks to all the help of the wonderful folks up on this forum, guiding the n00bs on our way!
Looking at the current projector arrangements, the room is going to need some adjusting. I might place projector on the floor or again behind the couch , but it will certainly take some ingenuity for sure just to get it right. Thankfully, the connection between the living area and kitchen inside the dorm has a drop ceiling. While I was originally planning to put the screen above the the window, this new setup seems *perfect*. Not only does the room remain open, it will actually gives back more space period. Will post pictures once mounting begins.