I'm new to the site and am looking for any and all help getting started. I'll be using OPTISHOT 2, with a 8' X 10' screen, the space I'll be using is a two-car garage measuring 22' X 21' with 10' ceiling. I'm envisioning a portable set-up, with the screen and projector being the only permanent components, since my wife insists on parking inside. Not sure if I need a short throw projector or if I can get by without one. Thanks in advance for any advice.