what i plan to do ( and already am doing ) is use my current lvl 70s to buy my 5 box team full greens from outlands for lvl 58+ or lower if i can. That way I will be set until 60-61ish doing old world quests and instances in UBAH green outland gear 8). i think the lowest level outland greens are 58.. might be lower. But the greens at level 58 are equal to some rare/epics in the old world. As far as main stats/armor and HPs. They are just missing bonuses and extra stats like the Tier sets would have.