About translating into other languages: i myself speak german and english only. If you want to do a translation into other languages, it would be great, you can contact me here on steam.

Most of the text is in the .esp and easily to translate with a tool like https://www.nexusmods.com/skyrimspecialedition/mods/921
But some of the text used by scripts are defined as properties on scriptobjects, which have to be translated manually in Creation Kit.