I am building a new house and would like to have the home theater screen placed in front of window. This would require shading behind the window to block out the light. I've seen expensive home theaters on television that have shades (I believe that use blackout cloth) that have motorized lowering and raising controls and that sit inside some kind of rail for better light blocking. Does anybody know where I can get the hardware for this. I wouldn't mind putting it in myself.