Aoshima 1/24 MGB in the queue - help?

Hi, guys... I picked up the Airfix box of the Aoshima 1/24 MGB kit in my local model shop for a very reasonable price. It looks like a really nice kit, and includes parts for both the early chrome-grille version and the later "rubber bumper" version. Now, I can't stand the rubber ones, and I want to build it as the '67 model. I've read somewhere that the "ride height" needs adjusting for the early version, because the original kit set-up is for the later model. Can anyone tell me _how much_ lower the early suspension was, and ideally, exactly how I go about lowering it? The front axle has wishbones, the rear is just held on two leaf springs

bestest,
M.