Holy ****, trying to scrounge together the money for this right now. Only request: could we see the possible layouts (visualization like with keyboard-layout-editor)? It looks like standard 75% ANSI, but the bottom row seems to have some different possibilities.
From the look of it, the bottom row options are as follows:
Winkey
1.25 1.25 1.25 6.25 1 1 1
1.25 1.25 1.25 6.25 1.5 1.5
WKL
1.5 1.5 7 1 1 1
1.5 1.5 7 1.5 1.5
Basically, either 6.25 or 7u spacebar available, with 3x1.25u mods (6.25 spacebar) and 2x1.5u mods (7u spacebar) to the left, and on the right it's either 2x1.5u or 3x1u. I am not 100% sure if there's 6u spacebar support, but I don't think it's possible with this PCB from WKL.
From the plate, it doesn't look like split left shift (1.25u+1u) or full right shift (2.75u) is available, in other words, it's ANSI only, with 1.75u Right Shift. Both centre and stepped Capslock appears to be supported.