Did you get in contact with 303? His father has access to professional CNC-Machines. He likes your design, like i do, and with your CNC-Data he could probably give it a try...
btw, are your buttons real ones or just a design-idea?

cheers, Thomas
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cheers, Thomas new owner of the MK1 00123 MK2 12GB 090000815 (my first one) MK2a 040103735 (from 303) and ???