Article Writing Needed

I would like to have thirty articles written on topics such as cycling, swimming, walking, exercising, and cardio training which need to be written by a professional that understands SEO. Articles will need to be at least 500 words in length and will be targeted to keywords that I will be providing you. One article per keyword phrase will do. Please follow the below guidelines: 1. Articles must be in US English - grammatically correct 2. Contain title, 250 character abstract, and complete article body 3. Article body between 500 - 650 words 4. Keyword density of 3.5 & 4.5% 5. Saved as .TXT format 6. Most important - Be completely original - no plagiarism. Articles will be checked thoroughly. TERMS: In accepting this contract, you are providing “work made for hire”. In other words, the buyer (me) and only the buyer will own the copyright and all rights to the work. You may not publish the work in any way. Please do not apply unless you agree to this stipulation. Please include at least one sample piece with your bid which represents the quality of work that I can expect for this project. The MAXIMUM budget I can afford for this project is $2 per article.