OK, I'm sorry that I've only just thought of posting this project here - it has been under construction for some time now.
During his National Service (in the 1940's) my father had an "experience" with a Sten gun. The incident became part of the family folk law and in a rash moment I offered to make a model of the Sten for my father.
The project was well underway - I completed the research and drew the appropriate drawings and had started the actual construction but my father passed away before the model was finished and my work on the task ground to a halt.
I re-discovered the model a little while ago and decided to finish it.