After many requests, I have finally put together instructions for my kinetic horse sculpture. A huge thanks to Ben Gee, for creating and sending me a mostly complete LDraw file to start from.
I took the opportunity to improve a few things from the original, and the result is a much stronger model. I also redesigned the feet, and tweaked the head to use more commonly available parts. You can still use the Piraka heads for hooves if you can find them.
More info and details can be had by following the link to the instructions.