Here is progress quite a while later. I've flush glazed the windows, made frames to hold the window bars and representations of the 'things' behind the bars that look like either the back of shelves or the bars that CCTs had to lock down vehicles. Anyone know which these are? The roof is now retained by the top set of handrails, (Like many Lima model coaches, the roof and glazing are one piece, the roof painted. To accommodate the flush glazing, all the glazing material was removed apart from tabs for retention by the top handrails). To avoid using very small amount of paint, the window bars are white thread and the other 'bars' are unpainted plasticard strip. It seems these bars / strips were white at least in the BR period. The buffers were cut off and the stocks drilled out and MJT 18" heads and springs that MJT sell separately fitted. I haven't filed the buffer tops flat as the prototype, that will be done when I've summoned some extra courage!

The photos:

Interior shot and roof to show the windows bars frame (20 thou plasticard):

Interior and roof

top handrails loosened to show new method of releasing roof

Now numbered, and top handrails attached. Just need to touch up the handrails ....

and with a loco to shunt it ...