I built a box to share the ac from our room to Addison's room. It cost.about $40 for the hose and blower motor and works in the evening enough.to cool down Addison's room 5-10 degrees. It'll never be cold in there, but it works. They don't sell insulation board, so I made do with what I could. Wiring isn't done permanently yet...
Adding an ac in her room would require more work that we want to do now.