If this was not a 90 minute drive away I would jump on this for $20. What fun would it be to drill out the lock and maybe strike gold? Even if it's all junk you could put a new lock in and sell the box for $20
http://nh.craigslist.org/tls/3464341059.html
http://nh.craigslist.org/tls/3464341059.html