Infocus Screenplay is about (*BETWEEN) 12'-14' for a 92" screen. Thats from the lens. You would probably be safe somehweres around 15'. Might have to use some smurf tube or wire loom to neaten the wires if your off.

OR Drill down the center of the room with a 2" hole and run the wires that way with out stapling them back, simply cut in an old wrk ring or box and pull the wires through.