OH! I've been there. DH works for Historic Sites and we've done demonstrations at Vance Birthplace during some of their special events. We stayed in a lovely cabin with a Weaverville address courtesy of Airbnb.
That's real mountains so you get something that kind of resembles winter sometimes. With considerable wind at times, but it doesn't go over 90F very often, right?
The wire wall shouldn't be necessary in that case, but putting wire in place of the doors would be a great way to get good summer ventilation. If you could convert them to actual Dutch doors instead of mock Dutch doors it would be highly versatile to open and close as needed depending on how the weather varies.
It will be necessary to make sure that storm winds can't blow directly on the roosts. When we lived up in Boone the winds were so strong from November through March that I sometimes thought I'd wake up to find that the entire county had blown off the mountain and was now a suburb of Winston-Salem.
Make sure to put the most solid wall toward the winter winds.
I love my Premier 1 48" Poultrynet Plus for my situation but I think that the Permanet is supposed to be better for high predator loads. The power of the charge is important for repelling bear -- solar may not be strong enough -- and it is reputed to help to train the bear by baiting the wire with bacon so that they get their first jolts from their sensitive nose and lips.
This article is incredibly informative:
https://www.backyardchickens.com/articles/a-treatise-on-electric-fences-for-poultry.72229/