Sorry to bother you, but how can 1800 layout be supported there are only one 1u Alt and Ctrl?
Show Image
take a look again
there's a 1x fn and Windows key or you could use one of the diamonds
there is only one 1u alt and one 1u ctrl
but the bottom row can be arranged like this
ctrl windows alt ----space---- diamond windows fn diamond
As you've mentioned it is possible to cover a 1u bottom row but the legends will not be correct, however 1u menu keys (R4 and R5) and a second 1u Alt and 1u Ctrl will be added at 250 and 500 MOQ respectfully. So if we hit 500 then it will support it 100%.
I wish we could reach that heigths, and I'm quite sure that we'll make it.
But, just to make me feel more comfortable, I think that you could allow those who purchase a full set, to buy some extra keys. One addon pack made of 4 keys: 1u R1, 1u R2, 1u R3, 1u R4. That would be great.