Assuming she struggles I'm guessing minute, minute and a half to strangle the life out of her. Good thirty minutes to an hour to fuck the corpse a couple times. Maybe another hour butchering the carcass and deconstructing the different cuts. I'd start some of that rump on a slow cook in a presure cooker overnight let's call that 12 hours. (After getting it in the pit which only took a minute, maybe a 15-20 minute cleanup wrapping ask the excess product in butcher paper and seal for freezing)
Anyway that leaves plenty of time to make up some good sides and have a delicious home cooked meal by the time the 24 hours are up. If I can't keep the leftovers, they're packaged neatly for transport.