I do agree that it seems pretty hefty to spend $500 on a three-week detox, but--for me anyway--I had already spent thousands of dollars on testing and medications, etc. Plus, at that point, $500 was worth it finally being over.
As far as my doc, I will do everything I can to see if he can do a detox with you long-distance (as far as the supplements) if you are unable to find a doctor who is willing to order them for you. Do what you can to find some help, and let me know if you can't find anyone. Remember, you don't have to have the whole $500 at once. You will get all of the supplements, and refill them as necesary when they empty.
If you choose to do the FAR-infared saunas, etc., you will probably not have a problem finding someone who has one out there that you can pay to use (if you want).
Let me know if there is anything that I can do for you.