I’ve failed tremendously in making my demands come across :P .
Uhmm…, what you propose with gpg definitely solves one part of the puzzle.
But, if I understood correctly, it doesn’t help to prevent a disk clone from getting hold of the files.
Yes, the files are encrypted, but that’s not sufficient for my needs by itself. If the files would somehow destroy or corrupt themselves on a disk clone (or something to that effect), I would have acquired what I’m seeking.