Amtrak Metroliner chassis help

[Mongo6407]

Does anyone know where I can find a replacement chassis for a 1300 metroliner powered car? Can I 3d print one?  Or is there any way to salvage a rotted die cast frame with zinc pest rot?


I bought a new old stock metroliner set with a 1300 powered car and three 1301 non powered cars.  Once I opened the powered car box I saw the end of the car was broken open and the metal frame was bent. The rot was so bad it expanded the frame over half an inch beyond the end of the shell of the car. There is no way I see to salvage the frame. It's very brittle.