That's what I would do. You'll probly be able to convert her to f/t, sometimes it just takes a little more elbow grease than we expected.
Feeding live really isn't that bad, yeah, you'll feel bad for the mouse. But, you will feel so good about your snake eating it will overcome it. If it makes it any easier, my BF has made me say thank you to the mouse/rat before I offer it off.