Hi Hicks
Thanks for the suggestion but sadly not even Fred has the plans, have been communicating with him for some time.
I tried to communicate with Alan Tomkins who did the drawings but his facebook account has not been active since 2018.
With ALIEN now being 40 years old most of the people who worked on it are now around 80 years of age!
By eye and some maths i think i have the scale correct but cannot beat an original blueprint for reference.
Thanks again.
ALIEN