Doug: I'd love to chat with your wife. I'll email her next week (I'm heading off for the weekend).
I love the look of the Simon Lake sub - but what I had in mind was not so much something a kid might build that LOOKS like a kid built it (from wood, tar, etc.) - but a "real" looking sub that was meant for an adult to build. Does that make sense?
I'm going to have to think this thing thru some more....
Barbara