German native speaker required for proofreading an essay in german

Hi, I need a German native speaker to proofread my University essay (it's in german of course) and to correct any mistakes and suggest any ways of writing "better German" i.e. what sounds better to them rather than in English.
It's going to be about 20 pages long or so, but I dont need everything checking as some things are just appendixes of pictures and things already checked. It shouldnt take longer than 1 or 2 hours to check through. I havent completed it yet, but I am trying to get someone in advance, as it is due to be handed in on the 18th june. I would like a quick worker who is able to send me it back within 24 hours if possible. Many thanks.