English to Polish/Portuguese/Spanish Translation

I am looking for native speakers of the following languages - Polish, Portuguese (Portugal) and Spanish to translate 20, 500 word articles about customer relationship management! I am willing to pay between 10 and 12$ for each article, so please consider than when placing your bid. Bidders without a sample or that do not live in any of the following countries - Portugal, Spain and Poland will not be considered. Since the project is urgent, I am looking to have the articles ready within no more than 7 days (1 week) Happy Bidding