My dh and I said the same thing. Fire is the first thing I would start along with stockpiling *LOTS* of wood, and try to camp near water.
Also, If I were very thin to began with, I would try to put on as much weight before I start this adventure. Both the Matt & Karen were underweight to begin with.
I liked how Matt he said he was "an expert" at hunting with the slingshot but he proved useless with it.