After you have found the people and the location, the following list will help you allocate your resources. People will react to these things listed in order.
#1. Breathing-If you are not breathing nothing else matters; learn CPR, buy N-95 mask with the outlet valve from Northern Safety.
#2- Someone shooting at you. You will react even if your are bleeding: Prepare to defend yourselves.
#3 Bleeding, direct pressure, Army tourniquet, the new ones that are wide, tampax and Quick Stop.
#4Freezing, Get those instant hand warmers for hunters, wool blankets, military artic gear, have many ways to start fires, and cut fire wood for TWO years in advance and Buddy heaters. #5 Water, Stored water, wells, creeks, lakes and Water purification equipment. #6 Meds, These are for people that will die without them, example, insulin. #7 Shelter, Tents are not good long term shelters, you need insulated, buildings. #8 Food, short term and long term, You must plant .5 acers per person per year. #9 Waste, If you don't deal with sewage it will deal with you. #10 Morale, depression kills Pray often, read, Movies, games, parties, time for couples to be together, Electricity! Laughter doeth good like a medicine. David
Thanks David for the high level requirements, building the list with your detail as a starter - Grace and Peace