Sorry if its all confusing Micky...
Okay MEFmotorsport (found in the traders section) do a set of rear coilovers for the Mk3/4 Escort that require NO mods to the turrets. We can say that as the strengthening required has been built into the individual components through design and material selection. Others state that turret mods are required, to what extent these mods need to take is anyones guess.
Obviously again common sense prevails - if you have coilover struts then dont go overloading the rear of the car with passengers or heavy items in the boot etc.