You can read more about the bus and see images at this link.
https://www.theconrad.family/setra-s120
The bus can drive and works fine.
See all the details at the link.
My German is not so good, so I hope my English is fine

I am not checking the forum very often:
Please contact me at
email: jesperconrad@gmail.com
telephone: +4531423007
Thank you