Bruff TG1 

Bruff TG1 Trenchless drainage plough ideal for cost effective installation of land drainage and water pipes and other services comes with gravel/pipe box, leaves a nice tidy and narrow band of grave,  best pulled with a winch or crawler or your biggest tractor or 2, has a lister diesel engine to drive hydraulics these could easily plumbed direct to tractor I have one of these (yellow 1) that was converted available to hire as well look Here  for video