Let's see, you need Dragonwrought Kobold to qualify for epic feats, and you need the ability to cast something that technically counts as a 9th level spell. Heighten Spell + Divine Metamagic should do the trick. How low level can you pack in Dragonwrought, Heighten, DMM, Extra Turning if you don't have enough turn attempts otherwise, and one to spare for Improved Spell Capacity? With flaws and a cleric with the Undeath domain, I think you could pull that off at level 3.