I live and travel in the south quite frequently and my 38' MH stays very comfortable with only the engine AC operating...the comfort of a cooling or heating system in a MH depends largely upon the quality of the MH insulation during manufacturing. Perhaps a different MH would be more comfortable for your wife. If you are planning to use it very much I would recommend getting a quality built four season one that can be cooled with only the engine AC.
As with most areas elevation plays a large part in daily temperatures. Ashville is in the western mountains and Wilmington is on the east coast. There is a radical difference in the two areas in both winter and summer climates. I live on a small island just off the mainland of NE,NC and we enjoy what I consider a pleasant compromise between the two climates.
NC consist of Mountains, Piedmont and Coastal areas. We have the highest Mtn. east of the Mississippi and also hundreds of miles of coastline. It is a great state in which to live and many retire here from other areas.
