WTB: Cheap, rudder compatible foot braces

Trying to rig up a rudder system on a yak on the cheap.  Picked up a cheap rudder, need some foot braces.  Anybody have an old pair they want to part with cheap?

I don't have any used ones, but these are awesome:
http://www.duckworksbbs.com/hardware/canoe-kayak/rudder-fb/index.htm

I am not sure what kind of yak you have but, I bought a rudder and it came with the "foot control track system" and it was the exact same track and foot braces as I had on my yak. THe only difference was that the locks were removed so they always slide freely.

You should look at your current foot braces and see if you can remove the locks. Also there should be a place to tie the rudder cables to them.

This would definitely be the cheapest route 

No longer need, found a full rudder kit for cheap on CL.