I would prefer to follow comparative accounts that collaborate accounts, outside the bibilical texts, in order to form any relevant opinions. There is no known exodus other than the Hyksos' and egyptologists move back and forth through the centuries like there is no tomorrow.
I get most of my information from this scientist I have followed for years -
http://www.atlan.org/articles/sci.html - who places the flood back to the only point in history where collaborative accounts mesh a global cataclym and works from there - which is "pleistocene end" 10,500 B.C. approx.. It changes alot of factors.