I found this article, which may shed some light on Epicurean principles. I can see now from the few pages I started reading that this can help with understanding historical context and meaning. For example when we see the phrase "self-sufficiency" it most likely refers to the complete economic self-sufficiency of a household (which is very different than our current times). Also it explains the ancient idea that nature supplies an abundance (which also is very different than how we see things in modern times). And that back in ancient times there was the idea that a very large surplus could easily be had, and could led to pursuit of unnecessary desires (desires of grave excess). The article in a few places brings up Epicureanism and also gives references to other articles by others such as Voula Tsouna. (I only got a few pages in but looks like something maybe Don and Godfrey might like).
Retrospectives: What Did the Ancient Greeks Mean by "Oikonomia?"