Great trip, I'm Jealous, watch out for those Tour de France guy's , aren't they going to be around there? Truck looks good.
Where did you get the roof rack? How much weight can it take (gutter is rated to 100kg)? and how far above the roof is it in the centre? It looks like it has a full length base rail to go with the 4 mount points either side, I like it but I'm limited to 90mm above roof line in the centre.