You may have a hard time without a heal/decurse some of the dots in there is nasty even for a 70, I know I leveled my warrior from 45(I think) to 62 In there I played my hunter and my buddy played his Pally. We were doing the same thing farming for epic mounts(and the baron mount). The Gold was great usually 55-60 gold in grey trash 2-4 Orbs heaps of runecloth and 12-15 Large Shards. All in all we were pulling over 500 gold a run.

Try It but I dont think I could solo on my hunter, never tried though...

EDIT* Didnt see that you could bring along another 70, bring your Shammy and one of the other 2, the XP is still good.