Whatever you can do to block sun exposure will help to prevent sun damage. I would think that running a dehumidifier that has a drain to the outside would be a better and cheaper option than running the ac unit. But, I haven't had to deal with your weather conditions, so hopefully you'll get some advice from fellow Florida/hot humid climate areas.
Retired but busier than ever!
2012 Newmar Bay Star 3302
5 Star Tune, SumoSprings, Roadmaster Steering Stabilizer, Blue Ox Avail
Brake Buddy, 2015 Chevy Malibu