Articles written and submitted

I need 8 x 500 word articles written for a new website that will be launching in 2 - 3 weeks. Once the site is launched, the winning candidate will also be expected to post the articles that link to the new site to article directories (must be able to post each article to 500 article directories PR 3+) You have 1 week to write the articles so I have time to proof read before the submissions. I will pay £2.50 per article written and submitted to all the required directories - total £20. I'll give keywords to the chosen writer. Keyword MUST be intelligently used 3-4 times in each article. Only writers who can write in perfect English and produce UNIQUE content should apply. I will pay only if the articles are error-free and do pass Copyscape.