If you happen to like Thinkpad keyboards, Lenovo on and off sells external USB and bluetooth keyboards with the Thinkpad brand. They feel identical to laptops of the same era when they are manufactured, and they have the same embedded trackpoint and buttons.

I am typing this on an old USB one that greatly resembles the keyboard on an X200 or T400 laptop. This old thing even has the little touchpad from those days and therefore identical palm rest areas. I also have a newer bluetooth unit that is just like my T495, minus the touchpad. I miss the touchpad even though I use the trackpoint for all pointer movement. I like to keep edge-scrolling enabled on the touchpad on my old keyboard as well as on my actual laptop.

One caveat is that the trackpoint acceleration profile seems different for these external devices, so switching back end forth between these and the built-in Thinkpad controls can feel clumsy while your fingers and eyes readjust.

You're welcome. For reference, the noise and travel issues you mention have solutions in mech world, wireless boards exist, althought I don't have any myself so I can't say much on them.