As you can see it now has a false ceiling which has had its central supporting rib glued on.
What you can't see in the picture is that the flat part of the roof is a four layer laminate.
The first layer fits in between the top of the carriage sides (the wide central section) and when it's glued on will hold them firmly in position ensuring they neither bulge out or become squeezed in.
The second layer sits on top and is slightly wider and its outer edges will be fixed to the curved brass roof skin eventually.
Next there is a thicker piece of sheet (but much less wide) which acts as a step up for the final layer which extends all the way along the length of the carriage including the vestibules.
This arrangement is necessary because of those windows above the entrance doors which are positioned higher than the top row of windows along the side and so the ceiling must have a step up at each end to avoid being seen.
Below the carriage the removable chassis has received its downward extension which represents the frame the carriage body sits on, and although you can't see them there are also lots of wee lugs (brackets in reality I think) which are in line with all the ribs on the bodyside.
Finally, I have fabricated and glued on the corridor connections on each end.
So, as you can see, there's been quite a lot done to it. I think I may set it to one side for now and set about assembling numbers 2 and 3 on the production line,,,
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