It's a fascinating case. I intended to create an insert for it, but my plan was a failure and I ran out of energy. I carried it around for a couple of months, just because it was such a cool case. If it does not sell, my French Brunswick will end up back in it, so we're thinking alike.
No, the holes don't go all the way through - I remember when I bought it the guy mentioned the issue and I'm fairly sure he included the missing piece. My memory fails me, though, as to what I did with it - just a small piece of leather.