I don't really see what's the big deal with missing some specific key layouts. Of course it would be nice to have everything, but wouldn't it be more important to use the time to get the keyboard done with at least some keymap in the first place. After that being done it would be more relevant to increase the amount of different keymaps.

We don't get much choices in what's printed in PC keyboards either and still we use custom keymaps on them without crying about it. The keys are what matters and what they do, not what is printed on them.

At least try not to be rude towards people trying to make some awesome stuff for us.