what a random way to do ride height. so if you had some ridiculous low profile rubber, like next to nothing you could effectively have no ride height and still be legal? mine has to be 100mm off the ground (no exceptions) at the lowest point which means it'll never be legal, even the sills at 100mm is too high :D
maybe you should get some 13's and run something like 1 inch profile tyres? do you have formula ford racecars over there? open wheeler race cars wityh festiva engines or something? they run 13's and the front tyres are 6 inch wide and have at a guess 1.5 inch of profile, gets the 1200 so low when it's just tuckin a little bit of tyre. can pick up the tyres real cheap or even free coz the guys like to have a little edge so the buy new tyres so often.