Need US/UK Writers Only

This is a pretty simple project. I'm looking to hire some good cheap content writers. I have plenty of works for them. Requirements: 1: The writers must be from US and UK only. 2: I can't pay more than $3 per 500 words article right now. Though I'll increase it to $5 per 500 words within one month. 3: You must have to be able to write 20 articles of 500 words each day, no exception at all. 4: Payment will be weekly on each Friday, no escrow or advance please. If you are comfortable with all of these 4 requirements above, then only bid. otherwise, please don't waste my time. And do PM me sample writing along with your bid. Thanks