I would suggest a small psk (personal survival kit) regardless of your skill set, no one plans on being up sh!t creek without a paddle. All too many times we hear of people who were "trained" or "experts" having things go downhill fast and either perish or need extraction. I carry Doug Ritter's psk, mainly because I can NEVER pack that small, being a pack rat. Has most of the basics, lacking only water treatment and storage, knife (a razor blade just will not cut it, pun intended, compared to a decent locking folder or fixed blade) and shelter.
If you can afford it a PLB is strongly recommened by many experts. Make sure to keep the psk on your person, as well as the plb if carried, in case you and your pack have to part ways in an emergency.
Not being an expert, barely a novice actually, I doubt the viability of snares if you are not setting up camp for a few days at a time. It will take a lot of time to set up multiple snares to catch someting (Murphy willing) and may not be worth the expenditure of energy every night to have to take them down in the morning and move on. Good luck.

-Bill Liptak