Hello, so far I appear to be the only actually native German speaker to bid on your project.
My name is Nina, born and based in Austria, Europe.
I work in media production (tv and film), so audio transcription is part of my regular job.
For a bid that is most accurate I would please need to hear a short sample, because if it's some very strange Bavarian dialect or something like that, I can probably do it, but would need longer than if it's in "standard" German. As for the translation into English, that's not a problem, UK or US.
I would propose we do a short test run - sample audio, you get a sample transcription and that part translated into English from me, and we go from there. Please feel free to contact me via chat.