I think the gold reward from this quest may be bugged.
Having completed it recently with 6 people, thw quest closure gave out exactly 200 gold to the person who closed the quest. (I believe this to be abug as I'd expect a closure which requests gold to be a multiple of the number of people present, (I.e 5x 100, or 5x 150) but 200 is both very low and does not readily divide by 6.)
Additionally, one of the items from this quest "Black Iron Helm" has a description unsuitable for it (It marks it as a skull masque made of yellowed bone)