I am in the US, so Xometry was pretty economical for my needs. I had three top and three bottom plates cut from 1.5mm 5052 aluminum for $67 total, tax and (free) shipping included. I added in a laser kerf on the swillkb plate generator that probably wasn't needed, as the switches are in there VERY snug. If you were doing a plate for hand-wiring, that's not a bad thing, actually. If you need one to mate with a PCB, I'd consider leaving it off, but it could have been the specific shop or really anything. There is a bit of luck involved in this process, which is basically a crude form of prototyping.