I ask this question because I remember this sort of thing was common in old releases of MSFS where there would be aircraft types for AI aircraft which weren’t available to fly (for example the 727 and Dash 8). The existing model would be tweaked and made a selectable, flyable plane. I would not expect it to be very good. Probably it would fly with the physics and cockpit of the A320 at first. The same request goes for the A330-ish AI model.
If someone has already done this, can you point me to the mod… or has someone tried and found it to be impossible?