Greetings
I would love to attempt to rewrite your article in the time given, with the instructions given. I have but one question and that is "Must pass Turnitin" - I admit I'm not sure what that is.
I have previous experience with article writing, and rewriting, and believe that 4 hours is a reasonable time, provided that your instructions and style guide is clear and easy to follow.
I am willing to begin immediately and will rewrite/proof the article to your standards.
(Personally, the 4 hour limit makes it challenging, and I want to test myself (if I can do it), but not at your expense.)
Thank you for your consideration,
Daniel Allen