Yes, he likes you ... You could try Stan with a printout of this picture - http://www.themodernantiquarian.com/post/20179 - the place it came from had a Carlisle postcode. (Withdraw if there's any sign of steam). Tullie House has some excellent paintings, loads of Roman stuff, but the stones, I fear, will be mainly in the basement.
75p!?
Blimey Pebs, I know you say there's not much rock art in Cumbria, so it might not be a very long talk, but surely Stan't'man is selling himself short?