Is quality, a kept deadline, professionalism and a dedication toward providing you with the possible quality what you're looking for? If you're looking for those things, you know they are worth paying for (although the bid amount is negotiable).
I'm not the cheapest who will be bidding on this project; but, I can assure you, I'm worth the price (and give me the subject, some way of providing you with a sample, and I'll be happy to show you what I mean by that).
I've written thousands of articles, in the past two and a half year; and, during that time, I have spent a lot of time - while writing mentioned articles, as well as in just reading other people's stuff - analyzing grammar; attempting to find a way to best integrate, the lessons learned by masters like Charles Dickens and other great/good writers, into my own writing. In other words, I'm above average.
Also, don't assume that my non-nativity defines me as a less qualitative english writer; as I have performed better than natives.
Whether or not you accept me for this project, feel free to add my skype handle for future collaborations; my handle is Sumon Hästö.