Hi Stewart,
And a warm welcome from me,
My wife and I walked the wall a good few years ago an enjoyed every minute of it, Mithras temple, Housteads, we done part of the walk the day before it opened as a National Trail , they were puting up the marquee at the start,
stayed at Saughy Rig, straight up from the farmhouse is the trig point , highest point on the wall.
Duncan