There are at least two different parties I know of, J2E and Artemis, that did the translations for Gaiden. Plus, a user called "Gaiden Guy" once attempted a Name Update patch, and even succeeding in fitting longer names such as "Luthier". Unfortunately, he stopped visiting this site before he actually got done with the patch, so, I'm not sure how to contact him.
Anyway, does anyone know where I can find the resources needed to hex edit the script? Table files, offsets, and other such things? Thank you very much, and God bless you!
EDIT: Alright, I got my question answered a while ago; since then, I've been hard at work trying to do what Gaiden Guy once attempted. So for those who wish to edit the game as well, here you go!
https://pastebin.com/c0kvsYjN