I ported the text routine over to Red Book and it seems it's smooth sailing for that. Just need to fix the other million of routine and err... right ^^"
Anyway, I found some bugs that can be fixed in Black Book as well. As of now, nothing is functioning, but I'll keep you posted.
Here are some comparison screens of the battle menu and the status menu. Current Red Book on the left, current Black Book on the right.
Yes, quite a difference, ain't it?