the Provencal epitaph in "Na Audiart" is translated in line 33: "though you wish me ill".
  Maybe what you are looking for are these:
 1) K. K. Ruthven, "A Guide to Ezra Pound's Personae (1926). U of Cal. Press, Berkeley/L.A. 1969,
and 2) Thomas H. Jackson, "The Early Poetry of Ezra Pound", Harvard UP 1968.