If this person is a newbie, like it seems, the best thing you could do Mattress is tell this woman what a bad idea this is. If she has been out for a weekend with friends and thinks she is ready for a long solo trip, she's delusional.

Tell dad to put a satellite tracker on her so he can go find her when she gets into trouble. A SPOT would be better than nothing. Otherwise, get a PLB or Sat phone-both can be rented. Forget cel phones-too unreliable in the wild.

Forget the combat knife-one of the worst ideas I've ever seen posted here.