"Would be" because they're mythological.
The closest real photo I found to the species in the episode is the Ukrainian Ironbelly statue at Universal Studios Florida. If this is how big it looks on top of the Gringotts replica, I don't think it would be possible to transport it as is by rail:
![[Image: 8173-EEE0-182-D-4489-8942-259-EF1-EA26-EF.jpg]](https://i.postimg.cc/5YKsPb9V/8173-EEE0-182-D-4489-8942-259-EF1-EA26-EF.jpg)
(cropped from Wikimedia Commons)
The closest real photo I found to the species in the episode is the Ukrainian Ironbelly statue at Universal Studios Florida. If this is how big it looks on top of the Gringotts replica, I don't think it would be possible to transport it as is by rail:
![[Image: 8173-EEE0-182-D-4489-8942-259-EF1-EA26-EF.jpg]](https://i.postimg.cc/5YKsPb9V/8173-EEE0-182-D-4489-8942-259-EF1-EA26-EF.jpg)
(cropped from Wikimedia Commons)