By luck I have found a reference to a book on Epicureanism and early Christianity (it's quite interesting to myself because I am currently reading DeWitt's "St. Paul and Epicurus". It's titeled "You will not taste death: Jesus and Epicureanism" by Jack W. Hannah. Does anyone know more about the book or the author or already know something on the connection between the Gospel of Thomas and Epicureanism?
I do not think I have heard of that. Please keep us posted on what you make of it.
Other than DeWitt's work, the only similar thing I am aware of - and it's not explicitly Epicurean but rather "materialism" - is the article from the early 1800's by Thomas Cooper "The Scripture Doctrine of Materialism" which gives his argument that a close reading of the bible supports the view that the human soul was viewed as a material thing in some of the biblical texts.