Hello there, I work for someone who has some scaffold towering for sale. It is I=I in shape, each section it 4ftx3ft and there are 20 of them. It is made from 30mm galve tubing and has been well used with cement and dents on each part-about 8 years old. What kind of price should I be paying to get said items? Was thinking of 50-75 pounds for the lot?