Strat, what are your thoughts on Archivist 5 / Wiz 5 / MT 30?
I trust Archivist is still in the base class list. That build would get dual 9's ~ L23 + Epic spells ~ level 26. With 2 Practiced Casters, dual L39 casters at L40 char, the best divine spell book in the game + best arcane spells + the Int synergy (bonus spells, much higher DC's, skill points). Would not lack for firepower, defense, healing or spell endurance.
With a Necro focus & a very high INT, that could be a handy build.