I want vent windows on my 73 swinger, is it possible?

The door skins are interchangeable. The doors will interchange too. But the weathership to vent window vs weatherstrip to glass will be different. And maybe/probably the weatherstrip stainless channel.

You need to look at the two different types side by side.

there was a thread here about someone that was doing the opposite. Taking a vent window early car to a ventless later type. Search it.