Here is an excellent article written by a person who has been doing this for a living. I am paying close attention to the experiences of others in creating legacies for people, communities, and businesses. Take a look and see what your ideas are.
http://dancurtis.ca/2009/07/08/how-much-should-you-pay-a-personal-historian/
More reasons to hire a personal historian:
http://genealogy.about.com/b/2008/10/19/making-a-living-as-a-personal-historian.htm
And even more…
http://genealogy.about.com/b/2008/10/19/making-a-living-as-a-personal-historian.htm
Find a strong interviewer who loves to research and loves history and loves to create narrative. Give the gift of your life.