I think you will find there is a groove in the front edge of the Fiamma. This can be used for a blocker panel or I thought alternatively an awning. A small generic inflatable "porch" style campervan awning would work well. We use a Vango Siesta. Other brands available. To me this would be the ideal combination of the Fiamma for dry and hot weather with the small lightweight awning for wet weather.
If you can and want to use the vans awning rail then the ideal candidate would be the Kampa Pop Air. As you have a pre 2010 van one of the earlier models available second hand at a good price will fit. It will not however have the option of fitting the useful front canopy.



Colin