This is my issue as well. I want a "normal" keyboard, only ergonomic, split, with all the fancy joint happiness that brings.
It seems these are impossible to find without some kind of 3d printing and DIY from scratch.
I am not able to invest in learning a new keyboarding process because I have to work on too many different computers over a year span that I have no control over, and I don't want my muscle memory to erode because of one special keyboard on my home workstation.