Using nothing but summon monster, and fighting everything we summoned, the result can be seen here...
http://www.markh.com/photos/junkyard.png
This took about an hour and a half to two hours, and lots and lots of runs to the convenience store for more summon staves when ours blew up. What fun, though!
(And no, my Mangband screen isn't that big; I used GIMP to composite four screenshots together to make one large one.
Update: Here's a later photo of the same level...
http://www.markh.com/photos/junkyard2k.gif
