Sierra or Escort Cosworth Bilstein GpA Magnesium Alloy Rear Tarmac Spec Dampers. Absolutely complete with top hats, springs, platforms etc. Rarely available in this condition. Not sure of spring rate but came from a tarmac car.
£250 including p&p to uk only.
Got some complete struts to fit GpA hubs also, including jumbo versions if any one interested.