I'm not really sure what you're getting at, but certainly in this thread, you're being corrected on giving massively inaccurate information. It's nothing personal, you're just wrong. How is the price of labour and paint in America ever going to be helpful in a completely different country? Labour is very cheap in the states, as are building costs, in certain states there's no sales taxes either, which could increase or lower the price by up to 20%. There's too many variables around the UK for bodywork, let alone a completely different country.
If you wanted to buy a bodykit and saw on a reputable forum it would be around 3k for fitting and paint, then your bill came in at 6, you'd be pretty upset. Especially if the 3k "rough idea" came from someone posting who has had a full wide arch bodykit fitted themselves. If you're feeling victimised I genuinely apologise, but this is a respected community, where we all look out for each other and try to be at least half right in what we say.