Have you tried a full lvl 55 Drainer's set? (dagger, helm, armor, sentinel shield) comes to 28 dodge, 24 H/S, 141 armor on a full dex bird. Pretty insane for tanking stats, with 6 in your dodge talent you can buff to over 50 dodge. I'd be interested to see how poor it's damage is compared to all the above tanking sets you put up there.