Rear door awning for Fiat Ducato

We are keen to get a drive away (if possible) awning to fit over the back of our Ducato. The van is 2.43m high from floor to top of the rear light. Has anyone sourced an awning that would fit please?

We found one that nearly fitted but the cowl wasn't deep enough to allow the doors to fully open - see photo.

I believe the Fiat Ducato is probably the same general body shape and size as Peugeot Boxer and Citroen Relay so, anyone know of a rear awning that fits the other models please?

I have spoken to a few suppliers who seem to have one that's tall enough but none were prepared to say that their offering would definitely fit our van. If we bought one, unpacked it and it didn't fit they wouldn't take it back - understandable I suppose.

I know other owners throw tarps etc over their rear doors but we were keen to get a "proper" awning if you know what I mean.....

Thanks in advance for any recommendations.

Brian