Ghost writing

Num. of words: 20k
Tone: Enthusiastic
Extensive research needed: no
Extra notes: I have been writing non-fiction books based on my historic and archaeological researches and have many international best sellers to my name.
I am currently trying to finish my current ms for my new book, which is overdue to the publisher. My problem is that I also run a fast growing company and I have limited time at the moment.
The book is non-fiction but needs to be creatively styled to appeal to a broad audience. The core of the book is written but it needs filling out and possibly some shaping. Some straight forward desk research will be necessary.
It would be beneficial to have an interest in science - and have a curious nature.
I envisage about two weeks work and I'm looking to complete by end December.
It will be necessary to have periodic meetings either physically or by Skype to discuss direction and style.