Good writer and rewriter for articles and posts

I need 5 articles some 850 words long. These will have to be rewritten/spunned into other 10 (5+5) articles no shorter than 450 words. Together with the articles, I need 20 posts, some 250 words long. The topics of the articles/posts relate to a common niche and no particular skill is required apart from creativity and good English. The articles/posts must 1. be original and pass copyscape 2. be written in excellent English grammar and spelling without any errors or typos 3. adhere to my writing guidelines (keywords and keywords density, bulleted paragraphs, bub titles, etc.) 4. written in easy conversational English with readers in mind Moreover I ask the bidders to strictly adhere to deadline, and I want the winner to agree not to show the works as portfolio to eventual other employers: the articles and posts will be published under my name/the name of my site and copyrighted by me. Please, mention the word lumacoide at the end of your response so I know you read the whole description. Due to the particular topic, preferences will be given to the female gender. English mother tongue is also a preference. The first 5 articles must be ready in 3-4 days. The 20 posts must be ready in the following 3 days. The retritten/spun articles can be prepared after, but not later than a week. The whole project therefore shouldn't take more than a fortnight. My budget for this project is 45$. I'm looking forward to establish a long-term relationship with a good writer. Only serious bidders only. Please, submit one of your article with a rewritten/spun version.