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Split keyboard with double middle keys?
I had a similar set of typing habits when I started and found that the bfo9000 suited my needs, may be worth a try for you.
It is ortholinear, rather that the row staggered layout you requested, but does allow the "overreaching" typing style.
https://keeb.io/products/bfo-9000-keyboard-customizable-full-size-split-ortholinear