Arnezami over at The Lost Forum has gone to great lengths to map out the interior of the hatch, based on visual cues from within this season’s episodes.
PS – I’d love to see actual production diagrams and schematics used in the show’s production on the Season 2 DVD set. Since I don’t own Season 1 on DVD, I don’t know how much of this kind of information was included.
Ideally, we’d get something like the Entertainment Weekly plane seating chart in an electronic format. FWIW.
And if you’re as much of a Lost fanatic as I am (would you be reading this otherwise?), I’m still selling Dharma Initiative T-shirts.