I decided to go with the Lemforder bushes, so set about finding a garage to do the job. I found a garage able to do the job due to the special tool needed to press the original type of bush into the trailing arm, booked the car in, but when they went to do the job the bushes were OK, I had been told previously buy a different garage ( that didn't have the correct tool) that they showed signs of failing, so they have been left for the time being, good result for now more beer tokens for xmas