I’ve owned both, but never at the same time. That said, I really think it would feel and look just like sitting in a Volare. I really think the pictures included in the first post are a good indication of how it would look in a Duster.
The F-Body really appears (to me) to be an evolution of the A-Body so the question is how much did they change? Certainly the front structure, but maybe not the tub?
Might take my tablet out to my Duster after work and squint and see if the structure kind of looks similar.