Send me your document so that I can start working on it right now.
Hello,
I am Raoul, a native French speaker and I saw your job and I am interested. I've understood your conditions (10 USD per language pair, and about 300 pages). I am applying in order to translate in to french. Unfortunately, I do not translate in to German but I am the best fit you'll find for the french translation.
Indeed I have experience in translating any type of text (legal, medical, general, technical etc...) and I've been translating for 5 years. Therefore I think I am more than able to perfectly translate 300+ words and satisfy you, while staying within the budget.
I'm looking forward to hearing from you,
Funtchue Raoul