Mr Badger,

You have quite a problem here that an LED light and small knife will not help with.

Plain rice will not go down very well after a day.
Suggest something to spice up the rice some. Even some bulk soup mix mixed with the rice will make it taste better. Dried TVP and veggies , some dried fruit and powdered milk and hot chocolate and coffee, sweets,sugar, salt and pepper all help ease nerves.

Large pots to cook the rice and food, cleaning gear for cookware. Stoves tested for reliability and a repair kit.

Toilet supplies are hugely important for this size of group as the sanitation issue is more important than food for 7-10 days.
Bleach Bleach Bleach!!!

A way to purify water as your supply will not last long.

Books, games time killers are needed.

More fuel than you can imagine for the stoves as rice kills fuel fast cooking it.

Your first aid kit is non existent. Get a decent one and add some convenience everyday meds for common issues. That many people should have a full first responder kit with O2 bottles x4 and at least 3 people trained on its use. Many agencies will donate a first responder kit to such a group or at least give a good discount.

More lights and blankets. Soap and disinfectant, towels etc...

Lots and lots of garbage bags in all sizes as you will have waste to deal with of all kinds.

Clothes spare for the few who are in need.

Batteries for the couple radios with lots of spares. Keep your batteries a common size so the flashlights and radios do not need differnet sizes and you can get more easily.

Paper plates cups knives forks spoons as fresh water and fuel will be at a premium and you don't want to waste it washing dishes..

Cleaning supplies.

Have any babies comming? Diapers, formula, wipes ,disposable bottle liners etc...

Ask for donations from people like Walmart and the city and quote the homeland security requirements.

As you can see you are sorrily underpreparred for 150 people and will realize your mistake in spades when the time comes.

I salute your efforts to date as the world is a better place because of people like yousrelf.

Thank you.

Flip