Take a path north of Mazkeen Crater that leads back to just above the Greater Faydark exit, at ( -754, 135, 548 ) Copy/waypoint -754, 135, 548. On the way up, you will run into Nuckletrow, a level 37 named kobold that will aggro on you.Remmy will run away from you when you arrive, and there will be a set of blueprints on the ground.
The blueprints will disappear if you are slow to click on the them and Remmy gets too far away. If this happens, walk back to where you fought Nuckletow, and then return to Remmy's spawn. Remmy and his blueprints should be there again. He goes through his dialog and runs off again and you have another chance to inspect the blueprints.