progression advice

My guild just killed lei shen for the first time 2 hours ago qnd we are getting ready to start sole hc progression next reset.
We have really good motivated people, all 110k+ dps (some on 140..)
We wonder what we should start with.. Our setup is:

Tanks: Blood dk, pala
Healers: h pala, r shammy, r druid
DPS: S priest, Lock, mage, hunter, ele shammy

Thanks! :)