As far as I am aware, the only changes to both of these post ww2 was internal refurb and a new paint job back into Chocolate and cream. The 1936/8 changes mainly appear to the change in bogies, from 4 wheel to 6 wheel and some alterations to the windows. I would think that this configuration would be of a more agreeable version to offer.
I doubt whether any of the mainstream outlets, i.e. Dapol or Farish would be able to produce these, but perhaps Etched pixels could add to their range of 70' Toplights to cover this.