Article spinner needed

We are looking for someone to spin articles for us on a regular basis. At present we need 8 articles spun from 4 existing articles ( 2 from each article). We would expect the information to be well written and to remain informational, but to be written in your own words, not copied. We can check with CopyScape. Native English speakers would be best. Each article should be approx. 500 words long. We will point out to you the keywords which would not need to be changed. We would need these 8 spun articles to be delivered within 2 days. If you are not confident you can do this, please do not bid. Please understand this is on-going and would be a long term relationship. This bid for 32 articles. Kindly note this will take up to 4 months to complete. Thank you,