For interior cleaning I would go with 1z Cockpit Premium and skip the wheel sealant. For the polisher I would go ahead and get the Griots Garage polisher it is a better polisher. Also look into Meguiars Apc or Optimum Power Clean.
My waxes that have any value stay inside the house in one of the cabinets. For detail spray and other detailing product it remain in my garage. I figured the other product was designed to be in the elements since professionals would be using it.
A day literally. But in all seriousness not very long my paint is black and shows all. On top of that it's a super soft Honda paint any wipe with a towel instills swirls.