Default [Q] How can I get the default GPS and WiFi apk

Hello Everyone,

Can you guys please let me know from where I can get an official gingerbread for Samsung Ace GT S5830 model for India?
I have tired to install from the forum but after using for few hours, I am facing Wifi, GPS, BT and Camera is not working at all. I am really feeling so sad, please help me out from this situation.

Also if you guys can tell me which is the final and stable stock/custom rom for the Ace.