I know the duster and dart standard back seats don't interchange, one of them is taller. I'm not sure the fold down seat would be the right size. But if the upper part if the seat could be made to work, the rest of the parts should work. The security panel height might need to change too, but that's easy enough. And of course the interior panels would need a rework, but that might not be any worse than what I did for mine.
