Looking for a business writer - How to conduct effective business process mapping sessions

For a short book targeted for professionals, business managers or consultants that wish to up their game in business process reingeneeing and is mastering how to better organize, plan, execute and facilitate workshops. I have written a short document and seeking for a written that will complement the text to reach 50 pages total. I am new to eBOOK editing and have a budget of 200-300$ to start with. I have many ideas for other books and looking for a positive, great vibe writting style.