If I get the time (and I'm not sure when I will), I may try to expand on Rob's script. It seems to me that the only thing missing is the ability to rotate or flip the geomorphs. I also can't wait to see what this all looks like when Dyson completes his set (as of today, he's on geomorph #39). At 100, there's bound to be a staggering variety.
This all makes me want to do another solo dungeon-crawl. I've done some with Mythic using my AD&D Dungeon Masters Guide (or OSRIC depending on my whim). But the dungeons produced seem to lack coherence that I hope geomorphs could provide.