You can find keys online. The price will vary if you have remote start and auto lift gate. You can get them programed at the dealer when they cut them for you.
IKTs, IAs, Fobs (I know they are not Ford OEM numbers, but they work with google ). As per Candurin
164-R8070 (IKT: three buttons; lock, unlock, panic)
164-R8073 (IKT: four buttons; lock, unlock, trunk release, panic)
164-R8067 (IKT: four buttons; lock, unlock, remote start, panic)
164-R8000 (IKT: five button; lock, unlock, remote start, trunk/liftgate, panic)
The 5 digit door code can be found on the back of your fuse box lid.
Personally I wouldn't bother using the an updated nav sd card. You are better off using whatever nav app you prefer on your cell. But in case you want peace of mind or find yourself in a area with poor reception.
Here you go:
Hope this helps.