For some reason YouTube has just flagged this video up to me. I don't think I have seen it before, and I have done a search here and can't see it mentioned. I think it is excellent, although there is a very similar one re-using mostly the same film.
I like the way the stock was widened, presumably to make more space inside by filling out to the width of the earlier guard's or motorman's duckets, if that is the correct term.