My primary reference source is a second hand Sierra Haynes Manual - 10p from E-bay.
And here is a list of the information sources I have found and referenced on the web.
Many many thanks to you all for taking the time to blog what you have done.
Richard's GBS Zero - Richard Lincoln
GBS zero kit car build diary - Neil Smith
Aidan's Zero Build - Aiden Kinnell
GBS Zero Build - A Lotus 7 for the modern day! - John Hamilton
David's GBS Zero Build - David Smeaton
A GBS Zero kit car build by Shaft - Shaft
GBS Zero - Phil Howard
johns zero - John
Mike's Zero Build - Mike
Robin Hood Zero Build Diary - Scott
Jason's Robin Hood Zero Build Site - Jason Morris
baxters zero kit car - Baxter t Bear
Dash layout examples: Locostbuilders