I’m located in France and have ordered a new Doblo van, 1.3 95hp

My issue is I’m drawing blanks on finding the part numbers to order.
The van comes as standard with a closed bulkhead behind the seats, I want to change this post delivery to the “multi function grill” we have dogs and do not want them in an un heated dark box.

Does anyone know where I can get drawings and part numbers?
The van is a 3 seat up front version.

Thanks in advance