I don't know why you don't just get a freezer and buy f/t.
I have over 30 Ball Pythons right now and am feeding f/t for the cost and for the lack of space/not wanting the smell.
I get my mice for 15 cents a pop with free shipping. I just got 700 large frozen mice for a whole $115.00. My snakes could give a crap too, they snatch 'em right up.
Even when these mice aren't on sale, they're only 46 cents for the large ones.
NOT advertising or anything, but I had a good experience with AmericanRodent.com. Might want to give them a try before abusing live rats/mice with extreme weather conditions and most likely death.
If you have under 10 snakes, just get the f/t. So much easier... It took me an hour to feed 30+ Ball Pythons live mice. And it only takes me an hour to feed 30+ Ball Pythons f/t mice. Dump them all in the sink of warm water to thaw. Fill up a bucket of hot water, put mice in, go to snake room and feed.