Originally Posted by Ryuukishi
Thanks. I've read those solutions several times already looking for answers (even commented in one). I contacted another commenter who described the same problem as I'm having to ask how he eventually got the achievement, and it turned out he had finally just started over with a new character.
I'd say just stick to what you're doing. It's a long, laborious sequence of tasks but eventually the achievement will pop and it will all be worth it.