Fiat Panda 2004 model - Sill crash repair - silverback

After a low speed accident, apart from damage to the side of the car panels mainly both doors, the sill also has a dent in it in one spot but I dont think it is bent otherwise.

Does anyone know if these sills are repairable/replaceable or is the car likely to be a write off? (18 months old car).

The sill on these appears to be integral with the rear body panel.

Thanks