I'm a projections designer for a theater company with a problem. I'm using the NEC NP40 Projector and after doing the math, my location for mounting it may not give me the size projection I want. Are there any add-on lenses for projectors that wont cost me a lot of money? I have thought about using mirrors to reflect the image to make it larger, but it would be far to complicated. Any ideas, tips, or suggestions? Thanks.