Hi there
Not yet a builder nor owner of a kit car however I would seriously look up kit cars and the BIVA test on this site and on here :-
http://www.rodsnsods.co.uk/forum/lic...legal-section/
The is a reason new body panels on a MX5 or BMW donor is the most popular way to go to build a different car.
What is your skill set ? wood work ? steel ? fibre-glass ?
What are you prepared to learn ?