the best place for things like that are printins company with a 4 colour printers as you can have any coulor you wont and can fade. as this reduces the amount of time and money.(with things like that they use body rap witch if never fitted is not the best thing to try and do)
i was doing that sort of stuff for nearly 2yrs with the printing side of things.i have now moved on to just vinyl graphics witch is not the best thing to use that has loads of detail.
were abouts in the uk are you?