I'm currently translating various Fallout 2 mods (UPU,RPU etc) from BGforgeNet to german. The translation is done via Weblate, a web based translation tool, at https://tra.bgforge.net/. After you connect your git repo to it, everyone, who is registered, can help with translating string by string, without caring for the formatting of the source files.
Since you ask for help and this project surely gets more popular in the future, I think it could be a good idea to consider this opportunity.
Info on how to set this up can be found here: https://forums.bgforge.net/viewtopic.php?f=9&t=26