Here is what I plan on doing. I'm putting in a pellet stove in the downstairs family room to help with the heat and the humidity. I plan on cutting vents to the upstairs and I may run some small ducts into the other rooms with a small fan for air circulation. I'll run Window A/C units in the summer and crank open the windows in the spring and fall. I plan on installing a bathroom vent. I plan on installing a range vent. I plan on using a dehumidifier.
Does anyone have any further recommendations?