Great theories. Here is the exact format I wrote it in, but I changed all the characters. I do remember maybe converting it to hex or binary, or at least considering it.

0486 | 4AE5 | 41BC
A58F | 3FBA | 1AD7

34F6 | 2AEB
37A4 | 4AAF

7?A4 | ?42? | 6F?? | ??D8
71?D | 6?A? | ?FCA | 86B?

32?F
7F?B