Article Writers Needed - 15x300 words daily. Profesionals

Hello Article Writers & Bidders, I need articles written & rewritten in big quantities ~15 articles a day x 300 words each.. Please send me portfolio and i need serios teams that do that easily not someone who delay with weeks.. I am only paying with milestones so both sides are happy on what we get.. I am working for different clients so topics will be different ... if you need i will find you programs to find articles on article directories so you know what to write in the article or you can use your own ways to find content to rewrite so it is totally unique and interesting. I am going to grow quantities so would like to have something about ~$0.50 for each 100 words ~$1.5 per article of 300 words .. or $22.50 for the 15 articles x 300 words. Thanks in advance please send me some portfolios examples and schedules example so i can verify the speed you write with. Nedko