Article and Blogwriters needed : Varied topics and interests

Hello, I am in need of smart and intelligent writers for a web portal which will be primarily geared towards Indians located abroad. The topics for the articles will be varied and therefore the writer will have a lot of freedom to write about topics they are most interested in/have expertise in. To start with , I'd like to have you write 20 articles on 5 different topics at least 300 words each. This will be a LONG TERM project and therefore I'd like to work with someone who has a passion for writing, who wants to continue writing blogs/articles for a long time, who is articulate , can write on multiple topics. Here are some of my requirements. 1) I need samples of your work first. 2) ABSOLUTELY no plagiarized articles. I will verify the originality using various mediums. I am providing total freedom on topics and word length and time taken. I expect the content to be original. 3) I need to know Cost per article. Thank you.