I recently aquired a free projector. It is a proxima DP5100A. It is old, but works, and looks like new. I'm looking to get a bigger screen, for I only have a 5' by 5' screen now. I'm looking for something in the 84" by 84", and to cost under a $150 bucks, and be just a manual screen. I found a few online, but not sure if I'm looking for what I need. seems the research I've done showa that I would need a high gain with my projector, but with the higher gain, it seems the viewing angle gets less. Can someone help me out?