To keep the price low, I'm probably going to have to have all the corner radii the same and then add straight skirts to modify the depth. That will mean minimum depth would be 2mm. Are you OK to add 0.5mm of shims? I can ask about varying the radii, but it's going to be an extra set up for the machinist, so it could be quite a bit extra just for one.
That's fine with me mr tester