Have you been up/down this road with truck only?
I'm thinking that you can go up, no sweat. Down, as I said in my earlier post, could be a bit of a problem. Going 10 mph in first gear downhill will get you rammed from behind by the zillions of motorcycles on that road.
Perhaps your biggest problem might be getting your rig off the road to the boondocking spot. There are not many side roads. I've seen a couple of streamside spots right by the road, not spent the nights there, but have enjoyed some long afternoons. Perhaps the one I liked best was by Soda Creek bridge. I may have the name wrong. One time when I was there, the military from the training camp down the hill had the pulloffs full of trucks and portable toilets.
