Hi!
Rewriting is a fun challenge for any serious writer -- it comes down to preserving the heart of the original message, if not some of the more incriminating details! As a result, it'd be a delight to rewrite the copy you've gotten your hands on, and reshape it into something better than the original -- something that will add value to your site.
I look forward to hearing back from you with some project details!
Yours sincerely,
Emily