I love all the patronizing and (ironically) childish replies that "anything is possible" and blah blah blah but obviosuly no one actually read the question. He asked if there are parts available to do the swap, he didn't ask if it was possible.
The answer is no. Not at all. Even on cars that had AWD options, the rear of the cars are typically completely different, with different sheet-metal stampings specific for the rear-drive setup. That would require the rear floor of the car to be cut out and replaced with the floor from the AWD model.
It's not happening, sorry.