The Ergordica is not yet available for purchase. My hope is that eventually some large manufacturers will want to produce it. And before that happens, hopefully some custom instrument builders will want to give it a try. In the meantime though, just about anyone can build their own via the build guides: Acoustic Ergordica Build Guide, Electronic Ergordica Build Guide.
If you want to manufacture the Ergordica, whether on a big or small scale, please contact me.
For updates on the Ergordica, including development and availability, please subscribe to the mailing list.