So, I'm dragging Rhino out for the first time in ages and putting together a custom plate, and eventually a case, for the 22-mini RGB by Kaliet, specifically the third layout shown here:
http://22kbd.com/145.
Any of you fine folks who've designed plates before, mind casting your eyes over the design I have, and identifying any mistakes I've made? I've added an 8mm gap around the keys for fasteners etc.
Edit: Bearing in mind what was said about the 'universal' cutouts, here's an updated image with the other cutouts. Have updated the attached dwg too.