Thanks for the comments and replies!
I wanted to use pulleys also but ran some sheetrock screws in partially in to the wall just to try the adjustable screen. It worked great so I just left the screws in. Perhaps once I try to motorize them I will need less friction so I will need to find pulleys also.
The speakers are DIY as you guessed and consist of 1" mylar Radio Shack tweets, Dayton 5 1/4 mids, and Dayton 10" bass not installed yet. The subs are some old fisher 15" I just can seem to kill to justify replacements.