Jeff, my perfect keyboard very nearly exists - the featureset spans three great boards, and I'd like to raise a couple extra considerations you might like to add to the CODE Mk.2.
First, backlighting - you nailed this one. I need not explain further. Another thing you nailed is the Cherry Clears; I'm an Alps addict and this should make the transition painless.
Second, zone-weighted keys: This was the killer app of the original Das Keyboard. I've come to love it, but not quite enough to keep me using the thing.
Third, full, unapologetic Mac layout support like my Matias Silent Pro. CODE does have media keys - are they Mac compatible? I want the whole kit and caboodle, however. The entire magic F-row, with screen brightness, windowing controls, backlight brightness on F5 & F6, a mute button, and an eject key. Frankly, I'd like to go even further than Apple's own layout does - they dropped the Dashboard key on F4; if there's some way to bring this back without sacrificing quick access to Launchpad, you'd manage to improve on perfection.
Right now, it looks like the most unapologetic Mac support I can get is from Razer's discontinued, pre-Cloud models. And that makes me sad. Unless I'm wrong about what the CODE is capable of, and that'd just make my day.