Hi Mary Ola,
A very interesting topic to discuss.
To answer your question if I have created statues as RO, the answer is no.
In my previous experience, I have created an aluminum structure and antenna attached to it as RO.
The architectural view created for my scenarios was: Location --> Land --> Structure --> Node (Node/Antenna was the rental object).
The usage view for above scenario: BE --> Land --> Node (Rental Unit)
In the same way, you too can leverage my example.
I will be glad if you can share your thoughts.
Regards,
Amar