.... However you wish. I would never trust 27 pieces of paper of plain text without checksum or error correction. The probability that a corner catches some humidity and rots away or similar, is too high. There are even insects and stuff that destroy paper.
So what you're saying is AES then Base64 encode and then do some error correction processing on it? That would make the file even longer but I'm willing to consider it. But I haven't heard of people doing a triple process thing like that before. So I'm not even sure its possible.