one thing Ive done in the past is to cook the butt up, seal it up whole cool her down and then on serving day, pull out of fridge, chop up and sauce it then reheat to 165..it will taaaast great!
Sorry, reading backwards today. For me I would have the pork done late Sunday night and keep in the coldest part of fridge. I keep mine 4 days and I'm still upright.