Qvic is entirely possible with 2.5'd characters. It's rough, but doable. Your tank does need to have some ring and guardian's charm levels though. Even with 3.0, your tank needs to have about 30k hp and at least a handful of shielding/avoidance. It also really helps if you got some pals to play with you instead of boxing everything.
I had a real blast clawing my way through this zone. It was an uphill battle all the way. Learning the pulls, boss locations, where to stand, more importantly where NOT to stand, how to deal with add spawning mechanics, etc... In the end all the blood, sweat, and tears were worth it for the true sense of accomplishment that followed. That to me is what makes the game.
I would highly recommend reconsidering paying someone to walk you through, but if your mind is set and you have yet to find someone...my team would probably do it for around 150k.