Plague Doctor is one of the easier sets to get in the game, it’s farmed in Ebonheart pact’s Deshaan. Doing Dolemans, Delves, Public Dungeons. The other nice thing is they have a zombie grind out there by the Public Dungeon and Delve.
Pieces as of 4-20-18 for Divine / Infused Trait Plague Doctor are about 10-15k gold per.
1h Weapons and Shoulders 20k gold per.
It’s a quick grind there are wayshrines by most of world bosses.
Go get that phat lewtz!