Any chance of an alu plate? I just don't really dig PC as a case material.
In that case, the plate should be 2T /w CNC-machining... that means cost will increase. I think it should be about $55 for 2T Plate.
If the plate does not support multi-layout including ISO, 1.5T will do but, in case it should support all layouts in a single plate design, 2T design is needed = cost increase.
If you do want AL 2T Plate, I will make it. But the Plate will have out line of KMAC1 Plate for compatibility with KMAC1/1.2/2.
Let me know.
GON