Pikatea – Long Boi – Extra Long Keyboard Kit (pikatea.com)

Why a decent numpad is in not decent left place? Even if someone considers left-side numpad a big deal, it has to be mirrored to be handy for (touch)typing.

I want a circular one of these on a lazy Susan so I can use macros like some kind of extreme sport

Finally, a keyboard that https://mechboards.co.uk/products/hyper-7-v4 look practical

What's disappointing is that it's big but adds virtually no extra keys.

You can get to a very useful 130-key layout-- a second band of function keys, two more columns, and a knob-- by adding only about 5cm on each dimension compared to your typical 104.