Help me make a "MechaMatrix" 2030 #keyboard, please?

Hello to all keyboard enthusiast here on the Fédiverse.

For the longest time, I have used a TypeMatrix 2030 as my daily driver, most of which was spent daydreaming of finding a close approximation that would be mechanical. Failing to find one, I procrastinated in researching how I could build my own, which was an error.

Now, my good old TypeMatrix is showing signs of dying, and I still don’t have even started on its mechanical replacement. So, I would like help and counsel on how to make one.

I don’t need it to be identical, (I don’t need the rightmost column on the actual TypeMatrix, for example) but I DO need the middle column with “del”, “backspace” and “enter” keys.

Would anyone be willing to help me, please?