I personally hope you do carry on this excellent idea, I found a virtual 3d tour of a dry docked UBOAT in the US, perhaps this might be useful
http://www.msichicago.org/exhibit/U505/index.html
or
http://www.msichicago.org/exhibit/U5...vie_petty.html
I often go for a wonder round the sub while being depthcahrged, it would be nice to have a few more areas to explore, I could even may a cup of tea or piss my pants in the toilet.
Keep it up and I hope you succeed
Rascal