I'm in the NE and I've only used the AC a handful of times. It does a good job in the cabin, but without modifications to get air into the helm and a larger unit I don't think it is enough.
The hull hasn't changed much if at all over the years, same with cabin dimensions. They redesigned and moved things around a bit, but basically the same boat from the 1990s. Well proven design.
You can get a new enclosure set from A&J Canvas in Vanceboro for about $3K, ask for Lee. You should ship your old set down to them as a pattern if getting a new set. Get the Strataglass and the Stamoid for a few hundred more. If you take em down, wash them. store indoors for the off season, then clean and polish the glass in the spring, you'll get many years (10+) out of them.