Thanks Randall!
We went with the ARB 2500 Awning and the brackets from Van Specialties. The brackets are a little pricey but they do not require drilling holes in the van, they sandwich to the rain gutter (z style). They are the best option, I've seen many photos of stress fractures in the van walls from the awning mounts that required drilling. The awnings tend to flex quite a bit resulting in stress transfer to the van. Since the awning spans all of the passenger side doors adding bracing to evenly distribute the stress transfer seems impossible. We bought two sets of the brackets, had an idea for a paddle holder on the driver's side we're probably scrapping, I'll try to take a couple photos of how they work.
With our pop top, the Penthouse gasket was getting snagged by the awning bracket bolts. We reversed them and used Acorn nuts to protect the awning fabric just in case it ever makes contact. We also switched the awning mounting bolts to M6x12MM instead of having to trim them down, the pop top could catch the excess so it's a good precaution. The only trick with the shorter awning mounting bolts is to shim them with a small screwdriver to get the nuts started.
We knew we wanted a bag awning so we narrowed it down to CVT and ARB. The ARB is a little more expensive but it also extends a little longer into camp. The ARB add on accessories, screen room etc, are cheaper so it would be a wash if you were already planning on some of that. The extra length is why we chose it.
Hope that helps.
-John