i died about 25 times doing all of this chain quest.. needed more DPS and good heal
so this is wat we did after we got pissed (after wiped we just marcroed whole horde chat and this is wat we have got)

68 protection warrior
70 shadow priest
70 warlock
70 hunter
70 paladin
66 warrior arm (me)
65 mage
67 warrior fury
68 druid
70 druid on bear foam
(5 more)

we had whole raid when there and finished in 20 secs killing 5th mighty boss