I've seen the model here on Mecabricks, but it's clearly imported from LDD.
Looking and googling a bit around, it looks like the lxf was posted on the Cuusoo project of the creator.

You may be able to contact the owner to retrieve a copy of the digital model.
Or you can contact the user who imported the build here on Mecabricks. Perhaps he has still a copy which can be shared with you.