Best would be to quarter and pack into a cooler with ice or an old fridge until you can get that all cut up. If not the next best thing is to hang from the rear in a garage or barn out of the sun, pack the chest with ice and wrap it with a big tarp. The tarp will help hold that coldness in well into the next day if necessary. My buddy and I have talked about making our own coolers in our garages. Take a corner and box it in and insulate it well. Then install a window air conditioner. Of course have some sort of gambrel hoist set up to get it hung as well. Just haven't done it yet.