I could perhaps give it a try, although my German is somewhat rusty. Haven't really used it in years, but reading and listening definitely is better than writing and speaking. Still, I'd prefer playing through that part of the game first to get a better impression of, feeling for, the 'color' (or mood/tone) of the dialogues.
If I were to install over an English installation of BG 2 EE, would the MOD still work and just give me some parts in German?