Alan, you really need to put your store of knowledge and pics into some sort of permanent and accessible form, particularly that which is relevant to homlogation issues. From what I've read in this forum over time and what the situation is in AU there is a severe lack of documentation for the S30.
For example, its almost universal in AU that S30's are allowed only the early BRE type aero aids and nothing more. Wheels sizes are another problem, surely there are records of S30's racing officially with wide wheels.
I don't have a S30 anymore but there are alot still being used in competition, particularly the Targa type events. Basically they are handicapped out of most winning opportunities.