Searching for a native German proofreader

We need a proofreading and editing of the content translated from English originally to German. The translation is a mix of TM and machine translation. The text describes the history of a museum, the story of the family that lived in the house of the museum, the description of the rooms, so an easy going and comprehensive story that will be an audio guides for the German visitors.

The text is approx. 4000 words long. Please send your quote per word.

PS. Only native and experienced proofreaders will be taken into consideration.