I just looked over the layout and mockup a few times again, and I gotta say that this is a really well-thought out set with the minimal amount of keys to satisfy everyone.
You have doubleshot window keys, hhkb support, windowed keys, 75% support, Profile-A for those who want vintage bottom rows, symmetrical \| and `~ keys, and swapped Ctrl/Capslock keys.
It's a shame about the lack of 1800 keys, but like Bueller and a few others pointed out in the past, that can easily be remedied by buying another set if you really want it.
I'm pretty impressed by the selection of keys for the layouts, and just wanted to point it out
Hope to see this reach MOQ when it gets off the ground!