There are a lot of people that have already tried based upon the Navy numbers and failed. The US Navy numbers are, apparently, not as accurate as one might desire - imagine. If you're paying cash, though, most of the Captains around here would be more than happy to indulge your search efforts. :11:
If you've got a week and sidescan gear, you could probably find it but it's a big lake and the water gets deep out there. If you're looking for a list of the local charter operators, search this board or the internet, there are a bunch of them if you include the fishing charters.