I did a little work on this and I think you can probably continue in this vain.
I hid the axis on the left chart.
I switched off the legend on both charts (you can put Women/Men in the titles I think).
You can probably do a bit more on this like switching off rounded corners, switching off borders etc.
Warning: This will only work if the scales are the same for both genders.
Let me know if you need more help, I tried to attach my working example but this damn community thing wont let me, if you give me an email address I'll forward it to you (but you might be able to do it from my notes above).