If in an area where temps are usually high, it is pretty easy to make a walk in cooler.
Build a room or shed out of OSB or? the size you think you will need.Usually about 6 X 8 feet, 7 ft tall and insulate with 2"of foam board. You will need 120V power to it. Equip it with a standard sized room air conditioner which are about $300. Then order a KoolBot system to control the air conditioner. About $300.
For less than $1000 you can have a great little walk in cooler that will keep the temp 36-38 degrees to age meat in.
Get 3 hunting buddies to chip in and you get one for less than $250 each
