I also recommend Chris and his body shop at VW Chelmsford I had my wings (brand new good will), bonnet, r32 skirts, r32 lower bumper and votex splitter don there and its spot on and can't fault it.
If anything I made a schoolboy error as I should've got my front bumper and rear upper bumper sprayed but never did and in certain lights I can tell the difference. Lesson learnt I suppose lol