Competent Copywriter To Re-write Articles

We are currently looking for a competent writer to re-write 30 pages of articles for ebook/newsletters. The topic will be related to mobile technology equipment, reviews, tips, hints and installation guide. The current bidding is for 30 pages of articles. Payout will be $1USD per completed and reviewed article. Leadtime will be 2 weeks. We'll only be able to provide more project work for someone who can prove to this part of the job well. We will own all copyright to completed articles. Since the materials will be published on my website, contents needs to be modified professionally so that it will be 80% different than the original, yet without changing the meaning of the contents. All work must use proper grammars and correct spelling. Please do not hesistate to contact me if you need more information. Thank you.