eBook Writer Wanted - Excellent English Required

I have a lot of research and I want to write a ebook on Paypal. I'm not the greatest writer, so I want someone to take my concepts and write them up. I'll edit. The plan is to release it for free, but I will pay you to write it. Should be about 15-20 pages.

If you do not speak PERFECT English, don't bother posting. Please have example of your writing. If you aren't a writer but know a good one, please let me know.

How much are you willing to pay?

I'm not going to state a maximum simply because then I will receive bids for my maximum. I want a good price but I expect to pay well for a good writer.