Old post, did you end up with a lathe pendant? I converted my lathe to CNC a couple of months ago and I have tried two different pendants. The first one was a X-box 360 wireless controller, which worked great and is fully programmable; but I crashed the lathe twice using the joy stick which is a little touchy. Presently I am using a wireless Xhc MPG Shuttlepro which I like much better for initial setups, so far so good.
The MPG is great and I can also use it on my mill (not quite finished yet).
Bob