Return to Menara Voidrender in the Barrens.
Return to Menara, tell her it'll take some time, but I'll make sure to come through for her... and you. Tell her to have you finish gathering the rest of your components--I should have the thread done by then. You can return and pick it up then.
Good luck, [player]. Oh, and say hello to Strahad for me while you're there. That old coot... putting a tower right there next to Ratchet... crazy.