The only hard parts of this fight are getting there and then afterwards. The way there is loaded with ton's of yellow-grape then once there when the dragon is up it has ton's of Dracolich Necromancers around it which arent to bad except they train lifedrain on whoever aggros them and if you aggro one they all come.
thats the first part
after you take care of all this the dragon itself falls like a rock it actually comical how fast it goes down.
the last part is takeing out the stone golems they are alot harder than the big guy himself but still not that bad just you cant use magic against them so its melee all the way lol. and thats pretty much the entire fight can be easily done with a well rounded group !