There is a great photo in Ian Allan's Railway Owned Commercial Vehicles of a row of Scarabs being repaired over a special inspection pit at King's Cross in 1957. It has made me think this kind of facility might make a great subject for a model to show off a whole range of railway vehicles, being repaired, re-painted etc. But apart from this one photo does anyone have any other images or details of repair shops of facilities where a range of vehicles might have been worked on?