Will keep an eye out for you. We lost our boy 3 months ago...SO i know how you are feeling. Sadly our boy never came home :-(
Have you called FF to report her missing. Also go to the municipality vets and ask them if they have picked up any cats of this description in the area. You might have to go take a look at the captured cats yourself, be warned, it's not the best experience but if your baby could be there, it's worth it.
FF will also suggest you contact the vets and let them know.
I'd do a few flyers and stick them under doors/gates car windscreens. Also knock on neighbours doors. Go out late in the evening when it's quiet and shake her food and call. Paying special attention to the electrical boxes - cats often hide out in them.
Good luck!