I have a bare room to work with and the client wants a rear projection setup for lower fan noise and doesn't want to see the projector or its booth in his room. Since focal length is the same either way I want to shorten the rear projection with a mirror setup. I'd like the gear/ projection room to be around 6 feet deep maximum.

While I'm sure my vendors have solutions... I wanted to talk with you guys about what you've used and liked for this type of system. Anyone?