We started on a fresh BBP 6 spi sheet, rolled a "6" for the starting room configuration (so we built our own---"6" meaning we had to use a hexagon, of course!), and then went with where the dice (and previously-drawn sections) took us:
Henry was very excited, and really enjoyed the process of drawing out the various corridors, chambers and rooms, discovering what was behind doors, checking for secret doors in dead-end rooms, etc.
Here's the map that we came up with:
Then I showed him the Room/Chamber contents table, and talked him through how that gives great guidelines on how many rooms in a level should be empty, have monsters, monsters with treasure, unguarded treasure, etc. He will have the pleasure of checking all of those rooms and chambers tomorrow for contents, since we only worked on the map itself, not the contents/key while building out the rooms
Allan.