You don't have to get this particular pack, but let it encourage you to get one of your choice that would have enough gear so you will survive (this description is from the company:
Life Gear's Wings of Life survival backpack provides the ultimate in survival preparedness. It is a complete three day survival kit with food, water and essential survival gear. The food and water have a shelf life of five years, and can withstand a temperature range of -40 to +120 degrees F. Detachable wings of life help keep things organized, accessible and easy to find in stressful situations.
Life Gear Wings of Life Survival Backpack
Features:
Sleeve system for storage of food and water
Waterproof tarp
Cell phone/walkie talkie carrying case
Water reservoir pocket
Multifunction tool sleeve
Cushioned shoulder straps
Lightweight ergonomic design for children and adults
Back ventilation system for cool air flow
See-through pockets for quick access to items
Ring hooks for added attachments
Two side pockets for storage of a personal safety device and bottle
Durable construction for long life
Backpack includes:
Thermal blanket
All weather poncho
Hygiene kit
First aid kit
Multifunction tool
Leather work gloves
Respirator mask
Compass
Signaling whistle
Thermometer
Red emergency flasher
Waterproof document/cash bag
Signaling mirror
Writing pad & pen
6-page disaster preparedness action guide
Emergency food rations:
Made in USA
Meets US Coast Guard standards (160.046/23/0)
Meets Department of Defense regulations (SOLAS 74/83)
5-year shelf life
Non-thirst provoking
Withstand temperatures of -40 to 300 degrees F
Ready to eat: each package contains 9 pre-measured 400 calorie meals
Individual portions eliminate messy breakup
Contains no cholesterol or tropical oils
Enriched with vitamins and minerals, exceeding RDA requirements
Emergency water packets:
Made in USA
US Coast Guard approved
No oxygen transfer (no chance of bacterial contamination)
Pre-measured packets make water easy to dispense
Easy to transport; no cups needed
Withstand temperatures from -40 to 210 degrees F
5-year shelf life
Model No. LGDLBPK01
Shipping Weight (in pounds): 10.2
Product in Inches (L x W x H): 13.0 x 6.0 x 19.0
Have you thought about adding a Henry survival rifle, or some other iteration of the AR-7?
For years I've planned to put one together on my own because it would be better, but that hasn't happened. It might be best for me to just buy something...