Ok, now I have the parking spot, north side of the old power station, down the stairs and across the tracks from the Bright Angel Lodge. Best spot would be in the shadow of the building, since it would be shady part of the day.

As for my "BTW" plane comment, the satellite image actually caught that plane in flight. It was flying, so that explains its blurryness in the picture. Looking at it again, we can see the windows only on one side, meaning the plane was banking in a turn. It must have been on final approach to the Grand Canyon Airport, which is about two miles SW.