Pack it with ice! I shot a nice 8 point a few years ago, temps were usually warm. I hung the deer for one night, temps werearound 40 to 50 degrees, first thing in the morning I got about 7 bags of ice. I laid the deer on those cheap plastic painters tarps, packed ice in the chest cavity, and then put bags on all the major meat areas; shoulders, thighs, neck. I wrapped up the tarp as tight as I could. Didnt cut it up for three days, the meat was fine. I am forunate to be a member of our local Eagles club, so I get ice for $.75 a bag.