Try contacting forum sponsors Kalibrate or IdealAV for a quote. It won't be cheap though and you'll need a bright projector to light up such a big screen (even one with gain).
For example my screen is 112" wide 2.35:1 (which is the same width as a 133" diagonal 16:9) and has a gain of 1.5. It is tab tensioned (to stop wrinkles and curling) and retailed at about £1,500 I believe.