need 200 original articles writing 450 to 500 + words

I need 200 ORIGINAL bulk articles. Each article must have between 450 to 500 words. I will need about 8 articles per day for the next 25 days which should equal about 200 articles. The person or team that does this WILL be expected to complete this job in the 25 days as requested. The articles must be ORIGINAL, grammatically correct free of spelling errors. The articles must be scanned through copyscape BEFORE submitted to me, so you MUST give all original content. If I find (and I will) that you are not selling me original content then I will end the job,report you to freelancer and everyone will know that you are not honest and as a result they will probably remove you from freelancer. These articles should focus on U.S.A and the english should flow well, I really don't have the time to check over and correct your spelling, grammar and dialect that's why I believe this job should go to a group or individual that is accustomed to english and its form. I need you to bid the total cost of 200 original articles. Please reply with your bid, your experience and how long it will take you to complete this job. Please see this attachment as it has the subjects that I want and need you to pick from this list of 500 titles. Contact me if you are serious and CAN do this job in a timely manner, remember I need someone that can do this without me correcting each and every error, or "holding your hand" through the process, so I need someone that is experienced.