When I was talking to my engineer (Vic) about 15 years ago when I got the engineers certificate for my car, he was talking af a $10,000 test pass or fail so it may have come down in that time... I went the easier route and got an early mk2 shell (pre adr27a) and mated it to an early (TC cortina) pinto that was modified.... car is now on club plates, but that certificate was worth gold in the couple of times I was pulled over and the fine print in the insurance company clauses saying the car must be legal mean the insurance claim went through no probs too.... I did it the right way for my peace of mind .... each state has something similar, but nsw,Vic,qld and sa in that order seem to be the most stringent... the engineers certificate onlonr was worth it years ago when I got pulled over in a big dragnet in Merimbula pulling over any suspect cars. Mine with the certificate was the only one let go and not towed away... had to pry the certificate off the cop reading it, as he had never ever seen another one ever before... priceless was the look on the orange Monaro drivers face as the noisier modified escort was allowed to leave and his was being impounded and towed....