I have lived in the United States from birth for 25 years. I have lived in Germany for 4 years previously. I still speak decent German.
I've downloaded the file you've linked and I feel confident I can do this task for you. If $120 is your budget, then I'll save you 10 bucks when you give me the chance to prove to you that I'm the most capable individual to complete this.
Also, I've noticed a few grammar/phrasing issues in the voice over translation. As a native English speaker, I can fix these translating errors for you and send you the "revision" upon your approval, if you'd like.
Deutschland uber alles!