Brit, X74 is your answer, I know someone with it, they use it as an every day driver, X73 here in the Turbo and these suspensions are nice because they are more aggressive and lower the car more than ROW specs and at the same time are suitable for street use, make the transition and I dont think you will regret it.

 

FYI... the GT3 ride height is ~25.5" from ground to the fender lips.