Okay, after doing some little experiment, changing the font in the raw Japanese patched version is possible. It means it's possible to import the Kagura translated text into the patched version without worrying about the dialog text overflowing the dialog windows. Although it might take some time, I try to import the entire translated text from Kagura into the current patched games. Keep in mind that it means that the base game content may be playable with the Kagura translation, but the current DLC content remains untranslated.
Maybe if I'm feeling motivated, I might try to translate the DLC, but no promise though since it already confirmed that Kagura will work on that.