Perhaps surprisingly, I'm not trying to wind you up, just trying to assess whether or not experts who are not professional archaeologists would, or even could, make any effective contribution to the archaeological arguments in the consultation.
If I've understood, the known archaeologists in Julian's camp are Mike PP, who is said to have mentioned it in a talk, and a research group who have issued a very strong report to a WHS Steering Group. There may be other professional archaeologists who have not said anything as yet.