Article Writer and Spinning Expert

I need 4 original articles written, then spun into 20 versions of each using TBS with a minimum of 60% uniqueness. You must own your own copy of the software and be an expert at spinning all levels. You will need to research each topic and come up with unique content that is interesting and creative. The longer the article, the better. I would rather pay a little more for a lengthy, well-written and interesting piece than something churned out in a factory. You must either be a true native English speaker, or at least sound like one. The audience for these articles is in the U.S., so you need to "sound like an American". This is the first in what could be a long-term opportunity for the right person. Preference will be given to U.S. or Philippines-based providers.