We are also open to suggestions for the spare ledge on the Megameet picture, more here:
http://heritageaction.wordpress.com/2011/06/02/avebury-megameet-nominations-needed-for-the-seventh-ledge/
Hmm... as someone else has suggested, Alexander Keiller I think as first choice, followed in second by Aubrey Burl. http://heritageaction.wordpress.com/2011/06/02/avebury-megameet-nominations-needed-for-the-seventh-ledge/