Rob,
I think that you have to consider that the same engine mounts are used for both the 2& 2.3L and the 2.3 is circa 13mm taller but the engine mounts are well down the block so the extra height is above the mounts. There is of course some ground clearance to be had if you pick the right DS system, the titan one offering the least gain and Racelines new system in theory offering the most. " when Peter ever gets it into production".
I have the Raceline wet sump on my car along with the Raceline engine mounts, I have also installed 8mm of spacer washers on top of the side rail engine mounts to lift the engine up off the deck allowing the rest of the car to be lowered as much as is possible.
Rob