I would say it kind of depends on her drinking habits, but I would probably go for it. Before I quit for good I dated a woman who rarely drank and that kept me sober for months because I was happy with her and didn't want to look like a jack*ss in front of a sober person I was dating. For me, loneliness was a big issue in getting sober.
And yes, dating at work can be tricky. Another can of worms, but still might be worth it.