according to this list the boots, armor, and legs drop from (Lv 230) Sjarejo Chamber and the gloves drop from (Lv240) Netanmalek Mausoleum. check it out to see which mobs drop what. plate armor = Desert Chupacabra.
https://docs.google.com/spreadsheets/d/1fP4G1JjL2pj6wMfpL_3o9pFWYIKpr3QnYgQ-XTfK21k/pubhtml#