Hello, and yes, "I understand."
This looks like a fairly simple assignment. Without specific knowledge of how well-written the email messages are, I can't be certain of that, but from the appearance of your job description, the emails are probably well-written, as well. That being the case, I will quote a figure of $65 to complete the edit for you. That becomes $71.50 after their fee.
The only issue I have doubts about is the possibility of problems understanding what is contained in the emails, but if they are communicated as well as your job description, there should be no problem at all. Should such questions arise, however, I would want to be able to communicate with you so we get this right.
That being said, I am quite comfortable with this assignment. If received early enough I should be able to complete it the same day or not much more than 24 hours. That may be assuming more than I should, but your description of the job is very clearly worded and explained. So, if I the job posting and emails were composed by the same person, the emails should present no serious problem of interpretation.
Seventy-one fifty for a day and a half, say two days, tops. Now, I have not yet seen the emails. But if for any reason the job suddenly seems other than how I interpret it, you have my personal guarantee of satisfaction. That's also something that "I understand." No charge, in other words, if I fail to complete the job for you to your satisfaction.
I hope to hear from you. Thanks for considering me for your editing job.
Dan