I would like to get help with the grammar and the diction
11 freelancers are bidding on average $179 for this job
I will translate up to 600 words for this price. I'm not sure what you want translated, but I am a native English speaker and I can help make sure the English is correct.
Dear Sir, I am interested in your job. I have very good English skills and experience in grammar and sealing, with references in this direction. Best regards.