Yeah, I also like the game but the poor translation kind of ruins it, so I started working on a translation. It's still very much WIP, but I can share what I've done so far.
I've fixed a lot of the text formatting issues, enabled font smoothing (some of the text is barely readable otherwise), and changed the format of the translation files so that commas can be used in the english text. I've also retranslated everything except for battle and defeat dialogue which is only about 25% done.
Disclaimer: I don't speak japanese and english isn't my native language, so this is not going to be a 100% accurate translation. I translate everything manually using multiple translation tools and my knowledge of the game though.
Edit: I forgot to mention that this is for the official 1.201 release, but with unencrypted files. If you use it with encrypted files, open www/data/System.json and change hasEncryptedImages and/or hasEncryptedAudio to true at the end of the file. I would recommend unencrypted files though, they seem to load a bit faster.