We need a game text editing

Hello. We need an editor who can not just check the text for misspelings or something, but to make it clear and easy. So we don't look for a proofreader, but for an editor. As the text is a translation, it contains some "non-English" phrases and sentences a native speakers never use. The text consists mostly of dialogs.

It's 47000 words, but this number is not the last, it can slightly change.

Please, tell your rate for the whole project and terms when applying.