BST/NIN x 3
RDM/BST x2
SMN/WHM x1
BRD/WHM x1
We foolishly did this at night, but wasn't a big deal. Both RDMs charmed a local pet, the BSTs fed it jugs. The SMN just dropped pacts on it. All of us stayed in range at all times, and a couple of us had our NPCs out. I was the bard, and just kept ballad up, dragged in new pets for the RDMs, and toward the end spammed curaga on my party. All in all it was a piece of cake even with our bad time choice. The RDMs kept regen 2 and refresh up, and the BSTs occasionally meleed it. At the very end everyone went melee and we beat it down.
If you do this during the day it is much easier because half the WS it uses are regens that are next to impossible to remove, but don't matter as much as the damage of 1000 needles.