This is who I used, Ritchy & Hamish also http://www.chameleonmetalcoatings.co.uk/
Brilliant little outfit who listen to what you want and provide a great service.
pretty sure there are pics in the recommended services thread.
yep did a good job for me, will need another trip there soon though as ive managed to curb mine, powdertec in kinning park are apparently good too and esp in possil