Mimi, how can a piece of equipment with completely movable parts be based on men's sizes? Scroll through these pictures. See the weird contraption with one wheel? That's it. The fitter can place you in a postion best for your body, both based on dimensions and on flexibility and injuries.
http://www.serotta.com/pages/features.html
You've got master fitters in your area.
http://www.serotta.com/pages/grads.html
Mimi, you aren't getting any younger. Is your back less flexible now than it was a few years back? Even with a touring/audax frame you could have a front end lower than you want. Or you may need a different seat angle. You need to find this out before just ordering a production frame. This is an investment that you'll keep for years. I spoke to several frame builders this weekend and the ones with the most years of experience and humble attitude said (paraphrased) "Get fit on a Serotta-style system. You need to be in the exact and proper position and from that we'll take numbers."
Frends know gud humors when dey is hear it. ~ Da Crockydiles of ZZE.