65 lb braid is equivalent to 16 lb mono so it is perfectly usable and will suffice for all freshwater fishing. Also, unlike mono line, braided does not kink nor does it break down from UV rays. The only downside to braid is that it can be easy to cut as compared to mono when the line is snagged or pulled over sharp structures. However this can minimized by adding some fluorocarbon line as a top shot to the braid and the fluorocarbon will be much less visible in the water.

As for the ever lasting debate of small fish = small hooks, you need to define small. Here we fish in the ocean where salmon can weigh up to 30 lbs with 4/0 and 5/0 sized hooks. All too often, we end up hooking much more smaller salmon, flounders and dog fish which can weigh as little as 1 - 1.5 lbs. Same applies to inland trout fishing where some very small trout can be reeled in on a much bigger hook.

In a survival situation, having different combination of hooks, line, lures and spoons that is suited to the fish species in your area is important. Also in a true survival situation, I would not be wasting time standing and fishing with a rod and reel unless the fish catch rate was known to be high as there other ways of fishing that can be much more effective and productive, time wise.

When I have time, I'll post my fishing kit which is based on the species of fish found here.