Mark,
Maybe these sites will help?

http://www.efilmforum.com/

http://www.35mmforum.com/forums/index.php

This one seems directed at theatre owners primarily though there are classifieds also. Another resource anyway:

http://www.bigscreenbiz.com/cgi-bin/ultimate.cgi

Here's a large page of links to anything remotely related to "film projection":

http://www.geocities.com/Hollywood/Theater/3622/

of course there's related newsgroups too if you haven't already tried posting wanted ads there.

I wish you luck and hope I can attend a screening if you have one someday.