So, I found that Kisnt now has a black version of the KN85 #keyboard... And I found that Akko has a #switch that is similar to Kaihl Box Jade switches. (Of course, they are much less expensive than actual Kaihl switches.)
Bought a set of them with the keyboard and just put it together, along with my favorite White on Black keycaps...
This is possibly the nicest typing keyboard I've put together since my Fekker 72-key keyboard. It could sound a bit better -- but the sound is really down to the switches not having a POM housing. I'm wondering if anyone makes a set of Clicky #switches that are around 50g/f with a POM housing.
Still a great keyboard for $50, and under $100 with my complete build... Easily better than the $300 Fekker (closer $375 when I'd finished the full build).