article writing

I have 100 PLR articles I need re-written. These articles are in both word and TXT format. The topics vary, and all of the articles are very well written. What I require is re-arranging and changing of the article so that the search engines and editors will not be able to tell it matches any other articles on the Internet. good understanding of English is REQUIRED, I cannot have to go through and edit these articles again. Also a clear understanding of what I require is a MUST. This is what I require 1.) Each article is written around a particular Keyword, The keyword is either the filename of the article. That keyword is used several times in the article for Search Engine optimization purposes. I need those instances of that word to stay the same. no changing them. 2.) The articles are all 400-500 words currently the articles must stay this length at least, or longer. 3.) The first couple and last paragraphs are to be completely re-written. 4.) The paragraphs in the middle should be changed around, words replaced some sentences re-written enough so they are at least 50% different then the original 5.) Add a closing paragraph to each aticle more or less summing up the concept, and use the KEYWORD (filename) once in that paragraph. I am on a tight schedule for these articles and require them within 2 days. if you possibly feel you can handle a percentage of the project in that time frame, post your bid for it and be sure to state how many articles you bid is for. If nothing is mentioned I will assume the bid is for all 100 articles, and that you are able to handle the project in the 1 day. It's impreative that it is handled in this time frame! My budget for this project is in the $5 to $10 per article range.