I would use a 200 amp "feed through" panel in the barn. They come with just a few slots for breakers, but have lugs that you connect the wires that go to the house. Some people call them "trailer" panels.
200' is a long run. Have you considered letting the power company provide a new service to the house?
200' is a long run. Have you considered letting the power company provide a new service to the house?