Alan
For all the reasons for and against Enforcers they still were Lee Enfields, they do have a chequered story, they aren't very numerous.
Like them or not, interest in them will only increase and it would be nice to have a definitive text on them (even {or particularly!} if it does become the subject of much debate).
With so few I suspect a pretty good list of genuine items will evolve.
Write your book
PLEASE
John
PS I suspect you have most of my information on them but will happily send a pendrive of them.