Honestly Noel, this coach rolled off the table & the roof came off (only damaged a bogie) so i took advantage but there are clips running along the length of coach so if you squeeze the roof along the sides the roof should lift & you might need to lift the roof above the gangways using a flat tool - id take off the gangways at the end first- they just pop out. The cravens are different, i want to do the same with mine.
My passengers are a mixture of Noch sitting people, half had no legs so they were easy to put in, the ones with the legs dont fit flush so put glue on their arses & top of their backs & that held them in place!