This is the part where it is useful to have proper help. This is why people also frown heavily on undertakings such as this. I am not trying to squash anyone's fun or drive to explore. But it is difficult to make a case for being "interested" in historic wrecks and not following through doing the rest of the work involved.
Whittman, I don't know you or your intentions. I not throwing rocks at you in particular, I'm trying to point out that your activities are giving ammo to people who would like to see interests like this to go away. For all anyone here knows, you've got the site all gridded off, plotted, and mapped, and the artifacts undergoing conservation at a nice lab somewhere.