Brackets work on window/passenger vans just fine. The brackets do not touch the windows. There needs to be about 5/8” of visible gutter inboard of the gutter lip. If the pop top extends to the lip then this presents an issue.
Re:ARB Awning - yes, this awning can be mounted to the brackets. Quite a number of people have mounted their ARB/CVT. To mount the awning T track, you will drill a hole in each bracket to receive the T bolt stud. You will not use the bend at the top which is designed for the Fiamma F45s. I can go over this in more detail on the phone.
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV Mid Top, Custom Walk Through, Lots of stuff added. BlingMyRig.com