Any ideas if possible or how difficult to install air in a 38 special?

portable ac would be the way to go

I installed one in a cruiser for a gal. It's a job and the marine ac isn't cheap.

installed a R/C unit in my Fountain a few yrs ago. Not a hard job, just took some time to run the duct and hoses in a matter they worked and were conceled.

those boats usually are not to bad..hardest part running the water line back to the engine room to install water pump, not much duct work involved as no multiple cabins...been doing marine a/c for over 20 years...dealer for mermaid..feel free to give me a call and discuss you boat...Rob 540-786-8111

Mermaid systems are great for performance boats. Can run the smaller units off of an inverter or 115v. Great product.

Mermaid kit is great, if you can dill a hole you can do it...Everyting you need is included....Ken