@OP good thing the world doesn't exist solely to satisfy your needs. If you don't want expansions play now. if you want to wait til november for the expansions, then wait. What were we talking about again? Sheesh.
While not a solo build, I stumbled into Thaumaturge - Wizard/Evoker Priest/Eothas.
I was playing on veteran but I am going to up it to potd when I load up next because on veteran it is too faceroll.
All these arguments are basically gibberish, seeing as it has been stated by Josh that PotD is way too easy atm because they chose to hunt bugs until release and haven't had a chance to tune the PotD difficulty yet.