Couldn't do it. Even if I didn't need it in the battle, can't leave Wynne behind just because she juices everyone's health and mana after the fights over. Plus, need I even mention the Broodmother? I couldn't get out of there without a healer, usually because if I didn't bring one, I would have used quite a few of my potions in the Deep Roads getting there. Good luck if you do though, and let us know how it goes.