A quick stop at a local store scored a fill-in mechanical keyboard, but in the back of [klapse]’s mind the need for a trackpoint remained. Maybe one could be frankensteined in to the keyboard ...
Lenovo’s iconic crimson red TrackPoint nub, which has been going strong for three decades, is a staple of ThinkPad laptops.
If trackpads aren’t your style, though, with some effort you can put a TrackPoint style mouse in your custom mechanical keyboard instead.