£800?
Honestly, I took a rattle can to mine and it's not given me bother to date. (Front Splitter)
I used Hammerite Metallic Black (Hammered Finish) which, when the light reflects off it, matches my lower grill surround pretty well. I removed the splitter for the colour change and, after sanding it down and priming it, gave it about 4 coats of Hammerite followed by two clear coats. To date I have one chip on it that is visible - the hammered finish disguises the rest and the paint has been tough enough to survive most. It's been on the car for almost 14 months now.
Granted most folk wouldn't feel comfortable cracking out a rattle can on a brand new £30k car, but I'd have a think about it if you have some time on your hands. If you take you're time you can get as good a finish as the bodyshop and, if you use thicker paint, it will last better against stone chips.
