This was translated and sent to me by the user Coopi - much thanks for taking the time to translate this and sending it to me. Includes both strings and XML files. As I don't speak German, I can't verify the data so be sure to backup first.
For ones who have already modded translations and would like to merge - use with xTranslator to install using the instructions on the main page of this mod. Includes two separate files for plans and apparel.