Hi Mike
What we did was to get Peter and Dan at SSL to produce Coil over damper units with adjustable spring platforms. In that way we can easily adjust the ride height to the factory standard of 135mm under the front jack platform and 155mm under the rear. All we have to do is loosen a lock screw, put a "C" spanner on and up we go!
However you may need to check and see if such adjustment is legal in the UK and EU. We had to get approval in NZ. Certainly keeps the car at the legal road clearance, plus it keeps the toe-in at the right setting.
