A 265
I don't think Ghost Touch Weapon applies to natural attacks; he'll have to get by on Greater Magic Fang. That can apply to all of his weapons with one casting anyways. I like the vortex, too, though the "eye" isn't big enough for two people.
But is there anything the cleric can do besides Ward?
Like I said, he can cast GTW on his own weapon, buff up, and go to town like he would do on anyone else. Divine Power, Righteous Might, hell, Divine Favor. Seriously, that's all there is to it, after Death Ward is up, the Spectres are really just a bunch of gimps with shitty hit points, shittier AC, and shitty attacks.
On the Druid, don't bother with Magic Fang, I'd say. Wildshape into a form with opposable thumbs (Dire Ape is the best one that comes to mind), wield a weapon, and have the Cleric cast Ghost Touch Weapon on that too.
If the spectres decide to hover out of range and wait out the duration of Death ward, then Greater Magic Fang becomes useful. Have the Druid Wildshape into a form with lots of natural attacks and the Cleric cast Blood Wind on him to make touch attacks at range.