I need to repaint my C4 as well. Whoever owned it before must have pranged the hood it and decided to repaint the entire car in Nissan blue by simply doing the cheap-ass $50 spray-over-the-paint job.
Now it’s peeling away and I am going to need about $5,000 AUD to give it a bulletproof paint job.
Still I find it odd that you were given a quote of $8,000 USD for a non-metallic paint job.

I mean the one I’m thinking of is an electron blue with 2 white stripes down the middle and possibly even some nifty artwork painted on. All that for around about $5,000 – $5500 AUD including a 10% GST.
I would shop around a bit more if I were you, as 8k sounds a bit rich.