Have you considered an Ergodox, or one of the other programmable keyboards supported by the http://qmk.fm/ http://qmk.fm/ project? I have an Ergodox Ez that I'

Have you considered an Ergodox, or one of the other programmable keyboards supported by the http://qmk.fm/ http://qmk.fm/ project? I have an Ergodox Ez that I've created a custom key-map targeted towards my vim and i3-wm: left of "a" is a key that if I tap it does ESC and if I hold it does the Windows key. Right of ";" is quote/Win. "z" and "/" if I hold them become control. Among other things. It took me around 2 weeks of un-learning some bad habits I had, to become really proficient at the Ergodox. Some of it was that I used to hit the "b" with my right hand but Ergodox only has it on the left. A large part was that I was borrowing a friend's keyboard with blank keycaps and though I was a touch typist, I would regularly look at the keyboard to "get my bearings". Plus, I always looked to do numeric entry. Plus, moving keys around for enter/space/backspace/tab took some getting used to. If you think "my ideal keyboard would", Qmk firmware plus one of the dozens of supported keyboards may just get you there.