Yes, doesn't seem to be many of these around, even stateside. Hence my intent to get a thread going here for some info. I've neglected it, so it's good to finally sit down and get some of it written up.
That said, I better go crack on with it. I'm heading for Austria in June with BenB, Chimp, and another, and I'm hoping to take the XL. It's far from ready, and although June is a way off yet, the adventure includes a train journey which needs to be booked in January. And... once its booked, they don't allow a change of vehicle details! So it's make your mind up time.