Kitting
I'm not a fan of so many forced accents in the kit. In my opinion, Esc, Enter, space and the F-keys should all have base color variants included too, not just the arrow keys. Let users decide which accents they want to use, it'll make your set more flexible and therefore more desirable.
That being said, consider only including one color variant of the shorter spacekeys (2u, 2.25u, 2.75u), either accented or non-accented, if you need to save on space in the kit.