Thanks for the reply. At night you can definitely see light from the inside when the lamps are turned on. Can you explain what you mean by a rear projection setup?
My dilemma is that I don't have a projector to test. Any recommendations on which one to buy, and where to buy it so I can return it easily if it doesn't work out? The video source would be a Roku 3 (wireless streaming from Netflix or Plex), and I'm thinking I could use the line in on a bluetooth speaker (Creative D100) for audio.