Copwriter for website content (must be keyword rich)

Looking for a copywriter who can write the website content of approximately 10-11 pages. Majority of the pages will need only 350-400 words. However, the content will need to be keyword rich. We will supply a list of top keywords and other keywords. Top keywords (10 keywords) we expect a minimum of 8% keyword density throughout the entire site. Remaining keywords (overall total of about 400 keywords) we would like to average about 4% keyword density. If you feel you can increase the keyword density with keyword articles, we will be willing to accept this as well.