Hi Michael
We have a full size Isabella that we use on Bailey TA, we also have a Ventura that we use as 3/4 awning on the same van, we are so pleased with the Ventura we have just bought another one,slightly larger to still use as part awning on our van, we will then be selling the full size Isabella and also the smaller Ventura. I would describe the Ventura as a lighter version of the Isabella, there are some cheaper parts like the elastic pegging points are just rubber bands, but if they break the Isabella ones fit straight on to the awning, our Ventura has been used in all weather and has been excellent value for money.
It is easier to put up than a porch and gives more space.