Hi Chris,
Well, that was some cool info he provided!!  I managed to look-up some of that information that was supplied (I used to be in the military, so I have an inkling as to how they approach things!!).  In fact, I was able to submit an on-line FOIA request to the Navy for the 1748xxx series of plans...will have to wait and see what happens next!  Stay tuned!
BTW, if you want to track this FOIA submission, the tracking info is DON-NAVY-2019-010621.
Cheers,
Tim