If you don't mind a little soldering,the BFO-9000 pcb's can be mounted side by side in a 6x18 grid.
Here's mine in split,just picture it as a single plate
Show Image
(https://i.imgur.com/rIqp9ar.jpg?1)
That's sweet. I looked at the BFO-9000 kit and it did pique my interest, but I was hesitant because I've never done anything with keyboards except as a unit (plus it's not currently offered). What all do you need to buy that's not included in the kit? Obviously keyswitches. I assume keycaps? Case? Cable? Do you get all the extras from the same vendor, or do you have to shop around? Does the PCB come as one board which you break apart, or is it always two parts?