I've had superb groups that way, who were "undergeared" but still managed 11-13/14.
Edit: Yes, conquest gear is the bees knees this patch. I've used it to gear up my hunter and shaman till around 540 including some lucky drops from ordos/celestials. If you have a supply of gold you could buy carries; it's 150g a win on my server, which means it's like 2k per gearpiece.
From there you can easily get into a flex/normal mode group.
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