just a suggestion, but u could try heroic bot. my setup is very different from yours as im only 3boxing shamans, 2 ele 1 resto, and my friend is pally tanking with his lock dpsing, so i have 2 people instead. however i have crappy gear, seer's shoulders, robes of oblivion, just w/ev i could get with damage and mana etc. and we can literraly rape heroic bot in 1 hour 20 mins, 1 hour 40 mins if laj is a wanker and decides to be nature resistant.

srsly, super easy 5 badges, and even easier 7 badges when its the daily, just a thought