This looks excellent! I have gone down a bit of a rabbit hole and I'm considering once of the Alice ISO keyboards[1], perhaps even waiting until the low-profile Alice variants are available in ISO layouts[2].
Both Q10 and Q11 are good. I have one of each in their respective uses.
Q11 may possibly be even better for someone prone to RSI, because you can set the halves up angled even wider apart. Just make sure to get a good wrist support to go with the keyboards, no matter which you go with: they are thick, and that makes them positionally elevated from the surface they are on.
With two more things they would be pretty much perfect. An embedded USB port on both sides, so you could slot a YubiKey nano on your chosen edge. And a double-sized Esc-key. The latter is the single thing I miss from Kinesis Freestyle's form factor.
[1]: https://keychron.de/products/keychron-v10-alice-layout-qmk-c...
[2]: https://keychron.de/products/keychron-k15-pro-alice-layout-q...