I would throw away the keyboard and get a decent mechanical one which means that the fingerprint recognition cannot be used, throw away the mouse too and get one easier on the hand and that doesn’t run out of juice just when you need it. (The charging point being uselessly positioned on the underside).
Apple has dispensed with sockets on the side of the computer or its base or anywhere access is easy so scrabbling round the back will scratch the rear surface so I would need a USB extension hub. The desktop is becoming a trifle cluttered now.
I would add rubber feet to the stand, as the plastic strips are too slippery, to stop it sliding off the desk in case I tripped over the cable as the MagSafe, dispensed with on laptops where it was most useful, is too strong.
However the trackpad is really good but probably not as convenient as a mouse.
It does look gorgeous but at £2500 it ought to.