ebook creation

Hello all, I am looking for a ghostwriter who can create niche market ebooks for me. I also have a project to go right away. Project #1 I have about 40 pages already written and need the existing pages exspanded on and made more in depth. I will also need new sections written. The ghostwriter will have to do there own research but I can supply many good resources. The 40 pages I already have make up an 8 part report I give away so the actual book needs to be way better than the reports. The book will need to be around 150 to 180 pages or so. This can be discussed though. The person we pick must speak clear english and write very well. We will also need samples, but are willing to talk with people with limited portfolios. I am not in the business of hand holding either and need someone who works well without me pressuring them. As far as budget goes the budget below is a place holder and I would like to discuss the budget so nothing is written in stone and I am more than happy to negotiate a fair price. We also hold niche market seminars and need to put a price together for a package we can offer people that come to the seminar. Thanks, Wes