Any chance that Past Life: Sorcerer feat might be a substitute for spell focus conjuration / evocation for the tier II requirements?
Actually I asked this earlier and Eladrin said yes:
Originally Posted by Trillea
At the very least Eladrin, please let the sorc past life feat count as well. If we must sacrifice a feat to the elemental masters for this power, at least let it be one minorly useful. I am a big conjuration fan personally but many are not, and would probably prefer the sorc past life.