Agree, it isn't an option any longer. But it was an option beginning in 2008 and into at least 2011. I don't know how far past 2011 it went, if at all.
The factory is pretty good at providing help. They even came up with a plumbing schematic on my 2007 Sailfish when I did my AC. They likely would provide a similar plumbing schematic for AC on the 232. They could also tell you how many BTUs their system was. Although, if you plan to use it in South Florida, you might want to go a bit higher than what they used, if you can fit it.
For what it's worth, I went with a Mermaid Air unit out of Ft. Myers. They have a good reputation for helping do it yourselfers and I found that to be true. Their systems are pretty much plug n play.
Good luck if you pursue it. The one thing I did to make the job a whole lot easier is I sacrificed the overboard waste discharge seacock to become the cooling water intake seacock. I was not at all comfortable drilling that big hole in the bottom of my boat and installing a seacock myself. We never discharged waste overboard anyway. Everything else was a matter of some scratched up arms and lots of sweat. I'm guessing you wouldn't even have to run any duct work. That was the hardest part!
Sorry to be so wordy. But if you do it, please let me know. We're considering the 232 in the future for a more trailerable boat.
Rob