Fascinating subject. In the mid 80s, at Ipswich station, in a bay platform, was a GUV or CCT obviously used as storage for the station. It was complete with buffers and wheels but seemed to have been there for ages. It was obviously moved when Ipswich station was revamped for electrification. I suppose it is not worth moving these wagons as probably the wheels are rusted to the track and brakes are stuck on. You will have to get a locomotive to go and collect it. If you do get it moving you will need to travel very slowly as wagon/carriage has not been serviced for years Must have been difficult getting rakes of wagons moving again if they had not moved for a year or so, the noise as rusted parts moving again would have been worth hearing!