Proctukas...
I know that they decided not to use the conversions in the film and that the one that flew was considered rather nasty to fly. I think there were two or three conversions, but only one actually flew. However, I've never seen any definitive answer as to the final fate of the conversions.
In the film 'Mosquito Squadron' an old Proctor was used as a 'German' wreck, suitably painted-up. I have often wondered if this was one of the Proctukas, as this film was made around the same time as the BoB film....