There is At Least a 50% chance of getting the starfire defender. When the NWNRNG goes against you, you can get 6 or 8 in a row. It is much faster to do the other three, even releasing the spirits!, to gain the faction you need. This can be conflicting as flying all around the outside of the zone and clicking the ghosts can take 12 minutes so neither quest is a good option.
Oddly enough, if you stay completely still after the starfire defender spawns, after a minute or so of intimidatingly staring at you it will just go away.
Click on grinder barrel at ( -437, 165, -809 ) /waypoint -437, 165, -809.
Click on the Starfire Dust Storage at ( -441, 165, -806 ) /waypoint -441, 165, -806.