From what I understand the embassy was maintained throughout the war, but I’m having a heckuva time corroborating that with an online cite. I’ll see what I can dig up tomorrow.
From that site, they seem pretty proud at having the exact number of permutations:
…But they got the number wrong. 
They say “There are of course 26! unique discs which could have been constructed.” but that counts rotations as being different. They take into account rotating each disk later, so they’re factoring it in twice for each disk, and their final number is off by a factor of about 18,000*.
*Actually (26!-1)(26!-2)*26/((25!-1)(25!-2))
In my ignorance I tend to associate Kabbalah with the numerological mysticism for which occultists have used it. If that is not true I apologize but I still believe the Bible Codes are “just some parlor game of word-find.” I agree that finding “words in a skip pattern that can only occur once in the entire Bible in close proximity to one another” “doesn’t have to be thought of as proof of divine origin in order to sound at least somewhat unusual,” but I also believe that doesn’t have to be thought of as proof that it was done on purpose. Finding such patterns in English is easy enough, though your conditions make them rarer than in the simplified method. Finding them in a language without written vowels makes it easier yet.
Even if these messages were buried on purpose, we must look at the motivations of those who buried them. Were the messages divinely inspired? Were the scribes trying to pass them off as divinely inspired? Did the scribes bury them as a party game for their friends? I know that the scriptoria reproducing the Torah would’ve qualified for ISO 9001 quality certification over two thousand years ago so the burial would’ve happened before that.
Is there a site or book you would recommend to learn more about the Bible Code as you describe it? One that doesn’t require my knowing Hebrew, maybe?
Everything I have seen about the so-called Bible Code messages has the decoded messages relating to things in the past…like the names of medieval era rabbsi, the invasion of Poland, WWII, etc. Home come these code experst don’t publish predictions relating to the future? Its like the rubbish attributed to Nostradamus-anyone can relate the quartrains to past events…yopu just have to twist a few things around (e.g. “hister” becomes “Hitler”).
So if there is anything to these Bible messages, let’s here wahts about to happen!