While I'm usually a big fan of 3 key 40s support in the base kit, I don't think it works for this set. The red numpad sub legends on the alphas don't make sense on a 40s board without the top number row. You could remove a few keys from the base kit, and maybe add a separate 40s kit.
Also, I think the key unit sizing text is incorrect on the bottom row to the right of the space bar, and on the pipe key.