Hi Russell
Managed to find a few of them in my desk draw but I know I have more of the station building, platform detail and goods yard/buildings. I'll forward them to you as soon as I can locate them.
Please excuse the quality as they were taken by a 10 year old on a Kodak Browny 127 some 60 years ago.
I hope they are of some use
Best regards
Banstable Junction .pdf