Necromancer with staff of damnation, seed of rebirth, and an extra spell (giving him two).
The skeleton regiment of 20 will be given the standard of hellish vigour so they can range from the vampires in the army.
The crypt ghouls, corpse cart, spirit hosts, and varghulf remain unchanged. This leaves me with 95 points to work with though, so, I was thinking either I can fatten up the crypt ghouls with another 10 models and a ghast which I could turn into a horde OR I could add another necromancer, or a wight king. Lots of options in 95 points.
Let me know what you think!