Go talk to the dealership about the Nav and ETAC and look at the cost involved. It requires a lot more than just changing the radio out, it has different harnesses, heater controls (not just the on off switches either) ECT...
The security package is easy, my local dealer does that for the cost on the build and price page.
Probably be easier to have the dealership try to find the car you want.
2013 Performance Package V6
2013 F150 6.2L Boss
Yes it is a Boss