Thats why I started my first post with:
Diets are a personal thing, I can personally get in enough carbs for such an event with just white rice, chocolate milk/powder and what not. Aiming for lots and lots of carbs.
My idea was to just introduce the though of “cleaning” up the diet the last 48hrs. And one way would be to just have white rice, greek yoghurt and chocolate milk, as a part of that.