Verbatim of early work on public-key cryptography?
My wishes largely came true! The GCHQ (briefly) published scans of [1] and [2], and another 1970 document:

[1s]: James Ellis: The Possibility of Secure Non-Secret Digital Encryption
[1.5s]: James Ellis: The Possibility of Secure Non-Secret Analogue Encryption.
[2s]: Clifford Cocks: A Note on 'Non-secret Encryption'.

These scans are excellent, including [2s] which seems to be from a printout of an earlier scan (as visible on an apocryphal annotation on bottom of the second page). The typeset versions of [4] and [1] are very close to [1s] and [2s]; differences are in formatting, typography, and a few transcription typos, like [4] randomly uses MI or M1 where [1s] consistently uses M1.
[1.5s] studies an analog communication over metallic wires trying to resist eavesdropping. It is readily admitted the system is insecure. As apparent to an electronic engineer (even of the 1970s), if an eavesdropper is able to measure both voltage and current on the wire, s/he can break the system.
All in all: it is nice to have these verbatim, but I found nothing that was not essentially known before on the history of public-key cryptography as we know it.