Uh, I wouldn't run the blower all the time.

Yeah, dehumidifiers are typically necessary during only the warm
months.

Where does the "AC condensation drain" go? I'm guessing there's no
floor drain.

The typical dehumidifier often has a small hose to allow water to drain
without emptying the tank, but there's no pump to pump the water out.
From what you've written, a T fitting shouldn't be a problem but it
needs to be close to the floor. Of course, you'll have to figure a way
to seal the hose-to-T connection.