As an aside, there are some things that you can do with having the air vents in the rooms and a forced air system with some control so that instead of "control

As an aside, there are some things that you can do with having the air vents in the rooms and a forced air system with some control so that instead of "control baffles in the basement that lead to ductwork for one zone" it is instead "control baffles in rooms". One such example: https://flair.co/pages/central-systems-smart-vents https://flair.co/pages/central-systems-smart-vents