HowTheBibleWasCreated,
What do you mean by "isolating the text of the Deuteronomic History"?
Are you saying that you wish to isolate P texts within Deuteronomy through Kings? Friedman has done this with the J, E, P, D sources in the first five Biblical books through his book, "The Bible with Sources Revealed". (Scheidewind's book, "How the Bible Became a Book" is tangentially relevant.)
Are you suggesting that you are "isolating" P texts that lie within the Deuteronomic History?
Is Emanuel Tov's work of use? I do not know, just a genuine question, as I claim little understanding of Lower/Textual Criticism.
For me the more important question is not "How was the Bible created?" but rather "Why was the Bible created?"
Doug