I am setting up a home theater in the basement and was looking around the site for a good design to build a 110" 16 x 9 screen. I would also like to make a masking system either removable or mechanical. I have read some people using the pink foam board but ideally would like to have a mechanical version so I have more flexibility for different aspect ratios. Any links to some good builds would be appreciated as well as some detailed instructions. I am pretty handy but would like this to look as nice as possible. Thanks for the help in advance.