I think the easiest way to do this would be to mirror Dulak, and not Dulak's gear. Make it a level 60 cap to keep the overpowered, class imbalancing gear out.

Then you need to take care of overpowered RoAs.  Most elegant solution here is to make it so that zoning in is done by handing an NPC your RoA ring which is then rewarded with an equivalently numbered ring that has differerent stats and a clicky teleport to the zone. This nullifies the ring, while still making it more worthwhile at higher levels and easily swapped for the original  ring.