A friend was doing a cleanout for an A/V installer, and was given a Da-Lite screen assembly, which he passed on to me. It's part number 80317, which, according to a document I found online, is a "Fabric and roller assy., Da-Mat 58" x 104" - 119" diag." It's still shrink wrapped, and doesn't appear to have ever been opened. I assume there's a lot of extra hardware needed to make this usable. Can anybody give me some pointers as to what's involved in making it usable? I'm thinking I'll at least need a motor and some sort of controller.