+Stephen Murrish has taken the basics of Wizardarium of Calabraxis and expanded it it just the ways I always hoped a reader would; he added an extra dungeon level and a nearby town. It's a really significant amount of content which could probably make a dungeon on it's own...
Non-embedded google docs version viewable here.
Want to give feedback? Share this on g+ and give me a tag (+claytonian JP) (if you want to keep it private, share with only me).
If you spot a typo or don't have g+, you can just email me. Claytonian at the gmails.