The whole idea was good but poorly thought out.
First off you got the modifiers on the armor for health set wrong. Which been known bug since the patch brought them ingame.
The mobs that drop the armor involve the help of opposite faction to spawn the mob which doesn't seem to go with the whole roleplay part of it. Then after fighting the mob for 45 mins or so the mob sometimes randomly disappears. If you do kill mob usually drops 1 piece armor for 1 hour of fighting or ends up dropping a sleeve/glove which could got off 2 min solo fight of lesser mob.
The quest for the Body Armor piece is insane. The armor is no better than some mission reward armor that takes 2 mins blitz. The amount effort it takes to get armor probably better off spent getting Azure armor. You could just made quest for getting sunglasses that did nothing more than look cool involved you gathered 15 people kill lv 300 mob in less than 3 hours.
Please give the whole concept a new look. Sure its suppose be hard but make it fun and worthwhile at the same time.