Writers for original and modified articles needed.

I am looking for a writer or a team of writers able to produce well-researched and well-written articles for blog posts. Also you have to be able to rewrite original articles up to 25-50 times to make them all different for search engines point of view. 300-500 words is a usual format for my orders. You have to be able to acknowledge receiving of an order in 24 hours and finish it in 2-3 days. I already have several writers working for me and I am looking for several more for long relationships. You have to be creative enough to write original articles and at the same time well organized to handle big amounts of routine work. I provide you hyperlinks with anchor text to use in articles. All articles have to be delivered in html format. No errors or accent is accepted, only English-speaking writers, please. Subjects of articles may be very diverse. I understand, that you may not cover all of them, it is not a problem, remember, I already have a team of writers. You can write only on subjects you know the best. It is not an auction. I have fixed prices for this kind of job. I pay 5$ for one original article and 1$ for one modified article. Right now I do half of modification job myself. It never takes more then 5-10 minutes to create another modified article. For a professional writer it should take no more then 2-3 minutes. Modifications include: changing titles, word order, sentence order, using synonyms, partial rewriting of certain phrases, omissions or additions of certain phrases and so on. You should know it better. No software it allowed, I pay to humans only. Please, provide your portfolio with your bid. Put your bids as placeholders only. I will open separate projects for each writer I decide to work with. Good luck. Mammon.