My Uncle Doug had 2 Guy big js one had a 150 gardner david brown box and trailing rear axle it was a long wheelbase dropside tipper ,the other was a AEC powered double drive short tipper,when Guy finished he was very good friends with one off the directors who were not allowed to buy the stock or vehicles so for a while my uncle was going in to the factory and buying lorry loads of parts with cash day after day,then buying whole lorries and driving them to a remote farm ready for selling on,they both did very well.