I'm keeping a gallery (just for a quick overview) of ergonomic keyboards. It might be useful for others interested in this thread. There's a lot of options, from something you can order from a large retailer, to a kit to solder yourself, to just plans to download.
You mention "Ergodox" instead of "Ergodox EZ". Ergodox is an open-source design that anyone can make. Ergodox EZ is an implementation of the design by one particular company.
I decided not to mention each Ergodox design -- as far as I know, Ergodox / Ergodox EZ is pretty much the same thing. I don't also list, for example, Falba.Tech's wooden versions of several of the keyboards.
I should probably remove the ErgoDone and Ergodox Infinity for consistency.
There's the Tex Yoda and other Tex keyboards -- I suppose if nothing else there's buying one of those keyboards and repurposing the TrackPoint and its PCB if necessary?
https://aposymbiont.github.io/split-keyboards/