Just bought a new to me Porsche Cayenne. The weather is finally warming up and I started looking at the condition of the paint. It needs some major works as it has a bit of swirls. I took it to a detailer and have him gave me a quote. It came out to be around $1300. He said that it would take 10 hours to polish, half a day to detail the interior. This is including a ceramic coating that will last 5 years. All together, it will takes him 4-5 days to finish. Is this reasonable? I do some detailing before, just that this new car is "new" and I don't want to mess it up. Is $1300 in the right ball park? Should I tackle this myself?