Hi!
I took a quick look at the story, and it seems pretty amazing. I'd love to read through and edit it. I usually edit through Grammarly. Apart from that, I speak pretty good English myself (feel free to take a look at my work or message me, to assure yourself of the fact).
However, the story's really lengthy, so it might take me a lot of time. I don't expect it to take over a month, though. I can use a change tracker, if you prefer that. I'm good at communication, and I'll provide regular updates about the book. I'm available online every day, so communication wouldn't be a problem at all.
I've edited four books so far - one was a children's book, and two were novellas ghostwritten by me. I can provide a sample, on request. The latest was a non-fiction troubleshooting guide for software, which I also converted to epub and mobi formats.
Why should you choose me over the others? Two reasons: Firstly, because I never, as a rule, outsource my work. Secondly, because I enjoy what I do. And knowledge and satisfaction, in my experience, are two things which always show, in a person's work. That is why I never take up a project if I don't know about, or am bored by the subject.
In summation - I enjoy editing, and would love to work with you, on your book. Also, regardless of whether we work together - all the very best with your book! I really liked it.
I look forward to hearing from you.
Thanks,
Priya