The Historic District

http://www.fixpocketdoors.com/

Messy site, looks like a spammy advert, but there is very good info buried there. The guy who owns the site has a pocket door restoration business, and looks to be quite helpful.

A project I'm taking on in a couple of months, but fortunately the salvage places around here have scores of them and the hardware. I'm worried about finding someone to install them.