Content Writing Project

Have 25 pages of content that I want written and uploaded to site.? Pages are already? designed and content? spacer boxes are waiting content to be inserted.? ? Have keywords and competitors sites to reference but CANNOT copy anyones site or write content verbatim.? Must be unique containg at least 200-300 words per page with proper keyword density.? A fluid usage and understanding of the English language will help make the end result much better quality.