It is easy to buy, but hey, people still get kits where it is all in one and conveniently designed.
here are what are needed
1. Mini fire extinguisher
2. Flashlight (non battery) - wind type
3. radio - wind type
4. fireproof blanket
5. bottled water
6. Loud whistle
7. (for the wealthy) GPS distress system
also - emergency first aid kit
Suggested that it be kept in a location strategic for the residents to go after.