No mate, I wouldn't think scrapping is required. No idea how easy the bush is to remove, I had bough new radius arms as I needed the car back ASAP. The bolts were rusted solid into the bush sleeves on mine, so took some work to get them off. As for price, it was all rolled up in a head gasket job but I think the price was around 2 or 3 hours labour in the end. Having said that, they were a bunch of cowboys that had the car.