So, this might seem kind of an odd request, but if I'm seeing it right, you only carry the clear in PCB mount. Which means that if you want PCB mount something else, an overachieving hobbyist would have to buy x-number of desired keyswitches, and x-number of clear PCB-mount, and swap sliders and potentially springs, at roughly double the cost.
How complicated would it be to get a bunch of PCB-mount lower housings, empty? Or maybe broaden your PCB mount selection a bit ... Two projects coming up that I'm thinking of is a 10-key in reds, and a 60% in either blue or green switches.