Hardware, in the boat sense, is the little bits that hold everything together.
Blocks (nautical term for pulley) will redirect the lines on the boat. We will require cheek blocks (mounted parallel to a surface) and single blocks (mounted perpendicular to a surface.
http://www.midwestmodelyachting.com/products/kdh/cKDH07.html Item #266 8cm long track; 12 positions https://archive.is/20131014055516/www.midwestmodelyachting.com/images/266.jpg
http://www.sailsetc.com/fithull.htm# 28-330 https://archive.is/20131014055504/midwestmodelyachting.com/images/140.jpg If we can get something machined here (or a straight-through locking track) that would work too.
http://web.archive.org/web/20100801033313/http://ocw.mit.edu/high-school/courses/guitar-building/lecture-notes/tools/geartuner_small.jpg Guitar strings have worm gears. This might be a cheap option for a locking gear for the sail control, though it will slow down sail control considerably.