Hi,
You can find my academic and professional background in my profile.
In regard to the project you posted, about the rewriting of a 320-page manuscript, my bid looks as following (please note that I could not find the sample pages you mentioned):
Total price: $1'700 for 320 pages, as indicated by you (that would be roughly $2.65 per 1'500 characters, if I'm not mistaken).
Time: I should be able to deliver the final product within a month (30 days).
Work: The task will be written in native-level English, and the content will be double-checked by an external source (English professor) at no additional cost.
I can provide you with examples of previous work, should you want that.
It's also no problem for me to submit a sample on your request.
I hope you'll be willing to consider my bid,
Take care,