The dps all around looks terribly low, especially the hunters.
For 511 ilevel, which is about mine here granted, I've gotten new loot the upcoming weeks, and went into ToT at 482 ilevel pulling 90k on this fight the first time.
I'd have your raid leader simcraft each of your dps for ilevel.
For hunters use femaledwarf.com
EDIT: We do Grgrgrg