Wyvern Skull, Ifrit's Cauldron HellFollow

I need help getting this item. It's just me, 64BRD and a 75THF, so far. I would like some help getting my Wyvern Skull for my Opo-opo Crown. I died trying to get this last time, but there were only 2 of us in party.

Let me know if you can help. I would like to try and get this on Friday night of this week starting around 6pm Central time.

Wyvern Skull