Old Hairy:
Great Stuff, keep it up.
A couple of videos that may be of interest.
The first has some very good shots of the inside of a Sunderland.
http://www.youtube.com/watch?v=Lsru2cxodFs
The second shows the Sunderlands on the Berlin Airlift sixty years ago.
http://www.youtube.com/watch?v=lFH2OZD-TcU