Eyup G!
<but can anyone recommend any other beauties in that sort of area?>
I've not been, but Sunkenkirk (aka: one of the Swinsides) has always looked smashing from photos and write ups.
http://www.themodernantiquarian.com/site/79
It looks like it has the lichenyiest lichen, and luverly texture,
http://www.themodernantiquarian.com/post/8147
Ah, lichen... (dreamy sigh)
r'n'r,
Hob