Elementalist gear (pre-searing)

I have been trying to obtain all the available clothing items for my elementalist before I move on to the post-searing. I have obtained the shoes, gloves and leggings, but I haven't been able to find the collector who has the Elementalist Robes. Does anyone know where he is and/or what he is collecting?

well. gurus already made a guide of pre-sear and seems like theres only 3 to collect. u have them all, unless they've changed/added to pre-sear @ full release. but going through it seems like its still the same.

its post-sear thats changed dramatically from beta.