Thanks BB, there is no crack on the PTO shaft, that was just a grease mark. The key way has some slight marking on one side and the woodruff key is most certainly U/S. The frame rails also seem good. They have been repaint at some stage. When I put the clutch body back on the shaft with the key there is no movement but without the key there is very slight movement. How much movement is too much?
I'll grab some more photos.
Boeing