ive used these a couple of times and always been spot on
http://www.finishlineukltd.co.uk/
https://www.facebook.com/finishlineukltd
Tried sprayshack on here?
Also try Hybrid Paintworks in Harlow Scott. I went down there and he works alone as he said he's extremely fussy and doesn't trust anybody's work but he's own!
Scott @Phase1sr , take it to Tony at Colourtone in Burnt Mills. You won't be disappointed.
I can send you some pics of his work. Has done a hell of a lot of work on my mates Sierras.
My side skirts went with Martin there.....