Ghost writer

Extensive research needed: no too much as I will provide. However need basics of Roman history of Hadrian's Wall
Extra notes: I am looking for a ghost writer who can assist me in writing around 30 chapters of my book. I need them to independent and flexable. I will provide that basic outline of the story but I need them to write it out and plot the remaining.
The book is about Hadrians wall and the Roman Period. Some research will need to be undertaken.
I am expecting around 33o words/page and 30 chapters max.
around 250 pages. Not sure the no of words that is?

Additional monies will be paid around £200 If you complete the whole project.
Most important : I expect this to take 6 -12 months. As long as we take our time and you keep in touch with me with regular updates I will not be micro managing you.
I need some one who has previous ghost writing experience and skills at creative writing and plotting.
Thanks for reading my offer!
Brian