I don't think on this one, I actually know (I train with one of the best ones around from time to time and have done my rounds with nutritionists, including him): The nutritionist/personal trainer (an accredited one without BS broscience) would run you 500/1,000 dollars, depending on the schedule and how personalized do you want the sessions to be. In reality, someone with a limited budget could get a personalized assesment, with macronutrient/calorie adjustment every two weeks and 5/week training sessions for less than 300 dollars. You'd pay the initial estimate (500-1000) if you want a guy to caddy you every step of the way (you know, the life coach sort).
The chef is a whole other deal, because of differing specialties, and of course, how "famous" he is. You can get a good one making and pre-packaging all of your meals for 500/month plus the food obviously. Go top of the line guys, and you're looking triple that, but of course we're talking tailor made, top-of-the-line stuff that adjusts exactly to the regimen you'll follow.
10,000 dollars (including food) would have had Pablo drop the weight (40 pounds, let's say) in three months if he was willing to do it.