Replying to myself because I forgot the reference [0]
I'm happy with the downvotes if they're for the JK laptop keyboard mashup.
Otherwise, pretty much as others have posted. Peripherals otta be peripheral, not welded in place.
I worked around the dilemma.
Twice.
An iPad pro has a keyboard, trackpad and BT mouse.
And I have a doorstop iMac because of a somehow dead display. (repair $$$$$ )
I very much favor separate everything.
Peace.
[0] https://www.ifixit.com/News/116152/macbook-neo-is-the-most-r...