Andy,
With such an excellent and detail description, it must be worth posting it on Morganatica as the subject does not appear to be covered there.

https://sites.google.com/site/morganatica/bodywork-and-chassis

Best Wishes

Frank

http://franks4x4-solograndetour.blogspot.co.uk/
Combat Stress-http://www.justgiving.com/Roadster100