I'm circling two places where you'll need to tweak some. A 3 axis cnc can't do square inside pockets like that. You'd need someone with a cnc laser for that.
If you were willing to break your design into 2 or 3 pieces to be glued together afterwards, I could help you out. I'm currently limited to a 9x9 or 9x11 working area. You would have to show your appriciation by buying me one aluminum working endmill They can be had for under 20.