I did check your armory, but the basic cobalt/saronite level 78 tanking set should get you to like 520 ish def. It wont cost you much either (less than 100g in mats total), Do a bit of research. buy the mats and tip someone to make it for you. Take a look at sbjones's link in my sig for what im wearing. All the big peices are these blue crafted items. Only my shield is epic. This should help.

Tempered Saronite and Daunting are the prefixes.