To start, let me offer to proof/edit a sample chapter, gratis. There is no point in paying up-front for the proverbial pig in a poke, except I think there is no proverb about a pig in a poke.
I catch on quickly to "funny" and "sad". I am already working with some science fiction guys and a fantasy novelist who is soon to change her name and write for Harlequin, real soon, real nasty. I would tell you more, but Freelancer would bleep it out and...NDA.
I have edited/ghostwritten/proofread novels, non-fiction books, technical documents, websites, self-help books, CVs, masters' theses, doctoral dissertations, letters of application to universities, medical schools, and graduate degree programs.
Your project has a lot of moving parts, and I can appreciate your being inundated if you are busy with your first job.
There are samples of my proofreading in the portfolio section of my profile. I hope you take a look.
American English is my language and style.
I look forward to discussing your assignment in greater detail. It is certainly as important to me as it is to you.
My bid is not necessarily written in stone. I am certainly open to discussion.
I appreciate your thoughtful consideration of my interest.
I am in the Eastern United States Time Zone, in St. Joseph, Michigan.