What levels do you already have?
It also just occurred to me that taking Undead Leadership+Leadership for 2x cohort isn't really a problem for me, because I can do it do. Thrallherd only excludes Leadership-based followers, so if we're assuming UL to be an independent feat from Leadership, I'm in the clear. It'll be a rather paltry band of followers, but the cohort's the important bit, and since I'm donating one of my cohorts to the cause of dirt-cheap item crafting (which we are seriously going to need considering the size of our band at this point, I think we're practically a small army), I deserve it.
Table of Organization:
-ExisD, Succubus/Movanic Daeva Warblade
-PaleEnchantress, Nymph Widow Queen
--Fiend of Possession Cohort
--Artificer Undead Cohort
Zaer Darkwail, Vampire Changeling
Glyphstone, Unbodied Thrallherd
--??? Undead Cohort
We can staff two entire adventuring parties to play off each other, if need be.