Al,
Your idea is a great one. I took photos of boat houses on the lake a few years back and posted them here. I myself was very interested in the history of these many boat houses on the lake. Take a look at some of my photos. Here is one that really caught my eye. Please note the unique plumbing connection. It is located just outside of Alton Bay on The Woodlands shoreline facing East.

And a view from the water:

Below is the first place my family rented in the late 50's in Alton Bay West side and at that time there was a boat slip under but that is now living space. It was called
Mujekeewee - not sure that is the correct spelling