I want to make it so it has a system like this, to make a full set you would do:
1A - alpha numeric base (common A-Z, 0-9)
1B - alpha language pack (most of numeric row, additional alpha characters, punctuation)
2 - modifiers pack
3 - nav/function/numpad math keys
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so something like this kind of grouping, sorry for the lame diagram.
Ok I see where you going with it, but you do plan to go the retro style mix/match color pattern right? at least that's what I see you going with it at least.
Ok first of all, we have great news for this GB and discussing about this is really early since you'll be running the 2 tone dyesub PBT after this, oh regarding the 2 tone.... for crying out loud don't make them like Imsto did... He had the 2 win keys and the page key modifiers in letters instead of symbols!!!!!!!!!!! serious facepalm.....
Ok back to topic regarding the next GB:
1A - alpha numeric base (common A-Z, 0-9) + space bar for crying out loud = black keycaps to match the retro look right?
1B - alpha language pack (most of numeric row, additional alpha characters, punctuation) I just guess these are extra keys for the above alpha but for different layout like the ISO,Qwertz, Dvorak and few other European legends caps right?
2 - modifiers pack, my guess this is the Esc + F1-F12 (retro style I guess) and then the rest of the modifiers that are left on the right side 3row modifiers from top to bottom which they all should be in purple to match the retro look right?
3 - nav/function/numpad math keys , my guess you speak of the 10-key pad as in retro style mix between black and purple to compliment the rest of the keys retro look. FYI in the picture you have the ENTER key from the 10key pad grayed out, don't forget that one we need in purple. So no matter what we need the full 10 keypad for peeps with full boards.
Ok what you presented its covering all and everybody will be happy. Now 1 thing stays in mind, whats the final price for 300 MOQ, if price is right, then awesome!!!! but if it isn't maeby people will just go with the donor board + tenkeypad + modifiers + the extra keys needed to cover the peeps with different layouts and just drop the alpha away from the GB.
Something tells me going all out trough GMK will be cheaper, but we will know when time comes :) FYI when I say cheaper I mean price difference of 20 bucks and more, but if GMK is few bucks more or less than just flat out makes sence to get everything from GMK straight up and not be getting stuff from donor board.