Hey, thanks for that info! I had the understanding that only the Ariadne driver was available. I wonder where I can find those CDs, though :-/
I was able to repair a broken, spare Amiga mouse (2-button only) and actually use X. Despite being 1-bit color, it's actually not that bad. Predictably, the X server is much, much faster than when I tried it in Linux on another 3000 some years ago now. I ran good ol' xeyes, xcalc, and a GUI file browsing utility.