If I know about it before hand I would be more than happy to assist as well. Three might be enough but four is better.
I did that quest on my alliance warlock on Kargath (another one of my three going for 70 at the moment) not to long ago and know what a pain it is to get folk to help with that quest. So am more than willing to assist any guildie that is going for it. Many Warlocks that I know have even not finished it because of the quest.
So post here or let me know in game and I will also join the romp through which ever portions of that quest need assistance.