I think you could easily get your car washed, waxed and the interior cleaned/protected for less than 100. Having the car clayed is a different matter, as I tend to see most detailers charge a lot for it. It only took me an hour to clay my car, so I don't know where some detailers claim up to 3 hours for it. Be prepared to pay for it. If you're going to do all that, you might as well have the car polished after claying and before waxing. If the paint is in bad shape (water spots, oxidation, stuff I wouldn't expect on a car as new as yours), have the paint cleaned with a paint cleaner or stronger polish first.