I have all the measurements just in case anyone ever needs them,
found a document on line from the factory fit instructions. I will need to make some adjustments to the internal brackets but thankfully not the car as it has a genuine trunk with the spoiler cut outs already there (phew 
)The cut outs pretty much dictate the final location of the pedestalls but I still measured and re-measured to the point of wearing the numbers off the tape
It's never a good feeling having to drill holes in your pride and joy 
but oh so satisfying when it comes out right, well worth the patience 
It's not going to bring my ET's down but I love the look so it will feel feel faster
Thanks again Steve, great to meet you
Just noticed confused Wife in first picture wondering what I'm doing outside so early on a Sunday morning. 
