So the Gennys can be resprayed from Brake 1st coaches
NIR second corridors from BR Mk2 1st Corridors keeping the same interior if I'm modeling before the all open conversions in 1988.
I presume the single 902 first is from a BR Mk2 1st whose body would be externally identical to the converted NIR 2nd corridors with 7 windows.
There were also other NIR second opens that would have been derived from BR 2nd opens, I presume, which would have 8 windows per side.
Was the griddle car derived from BR buffet car?