if i remember right, when i came to his place to discuss car-related financial gains, he has certificates all over the wall of his study...most of them from the best universities in oz, i think...
i used the spoon CF spoiler for 2-3 years, what i did was bought a 30cm LED brake light from autobarn (i think $30), spliced the original 3rd brake light wires and connect the LED light wires to the...
the problem with shock & spring combo is getting the right match (mainly spring rates), could be too soft or too stiff...with coilovers u have a matched up shocks & spring rate which would work...
find an auto paint store who can custom mix a small bottle of touch up paint...alternatively call up someone who can do touch up professionally...i don't know about syd but in melbourne that's what...
i've ran both shocks & springs and coilovers for my eg...while shocks & springs are good enough (provided they match with each other), coilovers offer more flexibility...
eg rears won't fit ek because of the different lengths of the rear lca...it's still possible to fit it but as said above u'd need to grind the bushing a bit...