Can confirm, SRS and zombies with a skelly totem is best way to go. Max out health nodes along the way as well as minion nodes. Once your health is set, go for some aura nodes so you can run hatred + generosity as well as haste. That dps will carry you well into maps. Focus on survivability after that. You don't need any dps stats besides cast speed. your damage will come from SRS and you boost that with flesh offering + auras.
This says it all better. Just take a more HC approach by prioritizing health nodes and HP/ES on gear. I would hold off going E/battery till late when you've got close 5k hp. Till then you can get 3-4k hp and 4k ES, so you can take any hit and be back up with a seething.
I farmed piety at 60 with this build no worries. Haven't been game to try on Dom till I get more hp/es, but when you get some sweet damage with SRS, he and his groupies are cake.