I definitely second (or third??) the no name/home brand pads to put over your wound! I have a bit of a tummy overhang, and I found my normal undies that sit below my tummy to be okay, I tucked the bottom part of the pad into my undies and sort of sandwiched (for lack of a better word!) the pad between the wound and tum overhang It helps stop your undies rubbing, and also helps with any excess moisture.

Everything else that you pack would be much the same as if you were having a VB, just you will need enough changes of clothes/snacks etc for the extended stay