First, go with the gill net already mentioned, and as for hooks, stick with the single hooks for the reasons others have mentioned.
In addition, if you’re buying bare hooks, consider including some circle hooks. With regular hooks you must “set” the hook, which requires practice. With circle hooks, the fish sets the hook for you (I’m guessing circle hooks are much easier for someone hand-lining, as might be the case in a survival scenario). In the interests of full disclosure, there is some disagreement about the benefits of
circle hooks. I recommend them in the ETS context because I think they’re easier for non-fishermen to use, plus there are fewer snags and thus fewer lost hooks, at a time when you can't afford to lose hooks. Experienced fishermen don't like them as much because it is so hard to break the habit of setting the hook, a habit that will cost you the fish on a circle hook.
Lastly, bend down the barbs with a pair of pliers. Again, there’s some disagreement about this practice, but a fish that might be lost due to a bent-down barb just means you have to keep on fishing. A barbed hook stuck in your own flesh when you’re trying to survive is a show-stopper and can be a genuine medical emergency. A single barbed hook stuck in you is bad enough; imagine being caught on a barbed treble. Here’s a sample
pro-barb-bending article. This article doesn’t address the safety issue, which is the main reason I’m a barb bender.