You will find it a lot easier fitting roof rails to the steel van roof as the bolt locations are already there with blanking plugs in place. No measuring and drilling like I had to do asvyour roof rail bolts locate straight into the threaded holes in the roof. Yes, if you are fitting x2 solar panels, fitting them crossways next to each other as near to the rear as possible. You will need a link cable to join you 2 panels then run the cables into your van. I ooted for the Renogy Shadowflux because of it's ability to still provide charge in shaded or low light conditions.This is great. I'm in the same boat as you, but without the poptop. I was looking at 2x of those panels as they're currently on offer, but will need to measure up first and check that they would fit. Turning them width ways looks like it might, going from your photo, but it'll need checking.
Good luck mate.


