Rewrite Articles

Hello, I have a bunch of travel-related articles that have been compiled using information mainly from the Internet. Obviously I don't want to get into issues of plagriarism, hence I want these same articles to be rephrased in your own way that is fresh and unique. Article length has to remain approximately the same. It is very important to change every sentence. Grammar, spelling and vocabulary should be immaculate, I am very particular and will check every line before I release your payment. There are 20 articles with an average length of 500 words. My questions: If I give you an very small excerpt from an article, are you willing to rephrase it so I can check your capability? How long would you take to rewrite these articles? Hoping to close this asap! Thanks.