Gordon, one of the said Neanderthals is enrolled on an archaeology-related Open University course (part of their “open access for all hominid species” scheme, I believe) and he’s offered to point his professor to this thread. You never know, they might be intrigued. Is that OK?

Any thoughts on a preferred location? Where are you based? I suppose almost anywhere in Wales would do the job, and the Clee Hills are littered with perfect stones (OK, I admit it, I can see them out of the window) but I suppose maximum cred would be gained from using sarsens, perhaps in Wilts (though NOT in the Avebury World Heritage boundaries – I don’t want to end up on the wrong side of another argument about that). Does anyone have any likely spots? I don’t mind doing a bit of chatting up of farmers if required, but it would be perfect if someone had a friend or relative with a good site.