Article spinning project

You will be given 50 articles, each 250-350 words. Your responsibility is to spin the article and make the spun version at least 30% unique (50% unique for the title). For example, Original: Today is a great day. Spun version: [Today,This] [is,has been] [a great, a wonderful, an excellent, an awesome, a meaningful] day. You will be given a thesaurus system to assist you. It's a powerful system with lots of suggestions. But please don't abuse it. You MUST ensure that the spun article is grammatically correct and every sentence is meaningful and logical. I have thousands of articles to spin. So we can work long term on this if your service is good. My budget for 50 articles is $50. Lower bid is welcome.