"Seems that the middle ledge is wide enough to get a horse and cart around it !
It will be a very little horse and cart, might get stuck on the corners, YOU could probably push a pram round it."
Well, that was what I was told by a builder friend of mine who was in touch with the steeplejack who told him this ... 
Oh No !! why am I in blue now like Retlaw, horror of horrors .. 