Everything fits together as intended. Some pieces were either too tight or a little on the loose side so I decided to print some again.
Unfortunately, I made the linear sliders a little bit too tight so that they bind a little bit when fully extended. I'll change that in CAD but for now, I'll leave my sliders like this as it's good enough.
The trim wheel holder has to be changed, though, as some manual modifications cause it to grind against the enclosure now and I really don't like that.