I think the PBY Catalina and the helicopter used by the Cousteaus would be great additions. It would be awesome if all proceeds would go to benefiting the Cousteau Society. Icing on the cake would be an activity of landing the helicopter on the Calypso as well as maybe some whale spotting missions.
Since on the subject. Would be great in 2024 if career options included roles in wildlife and environmental conservation. Aircraft have aided greatly in these efforts.
PS Paint schemes for the aircraft used by Turtles Fly Too to help support them as well would be awesome.