You can't see them, but there are a lot of measurements noted in pencil on this diagram of the road.
On the top right part of the picture is an arrow. We would drive down this way. The target is the slab marked at the upper left.
The odd shapes on the bottom are our front driveway, and the wide place in the road outside it.
The first challenge, after just driving down the 1/4 mile of narrow road with on major turn, would be to turn the rig around so it is facing uphill. I think there is room to do this in the wide spot in the road just outside our main driveway.
Going back uphill the turn into the driveway that goes to the parking slab is very tight.
I made my model is 36' feet long and 10' wide, (our limit is 35' and the width is listed on them is 8' 5.5")
I have only marked the surface of the road. There is 2-3 feet of unobstructed shoulder that although a bit soft, could be driven on or the back end could hang over without a problem. So it is not as tight as it looks.
Making the next turn is also tight. Not to mention backing back out!
Craig looked at my diagrams and said he would back in rather and go out head first, then go down to the drive and turn around to go back up the road.
Either way it will be a challenge. Of course this is all theoretical. First we have to find a rig we both like and fits into our budget!