We have a Ventura Freestander and love it. (They come in 2 heights and we have the taller one) Couldn't recommend it highly enough. Have tried other lighterweight types previously but, for us, they don't compare. Obviously there are a lot of happy folks out there with the lighter types they are very popular but ... horses for courses.
We don't have a fitting on side of van either, and in any case would not want to be permanently attached, preferring freedom to come and go, however, the Freestander is tall enough for us to open van door without fouling so we can either leave it completely unattached or in extremely inclement weather throw the very neat apron over the van and fix it with guy ropes on other side of van. A very neat apron and tunnel and what's more, it fits! Excellent quality as one would expect from Isabella (mother company).
Our van is A class Hymer, 2.90m high.
Sal