Interesting MSL, thanks for sharing that document.

The $12k euro quote, is that if you enter the study privately with the german doctors and hospital or if you go through Dr. S.

That is far less expensive than I was originally quoted/told.

As for Mexico:

32k - Dr's/Hospital stay (includes 1 free booster)

Variables:
How many family members are traveling with you. Lets assume 2-4.

Rooms: 100 night x 21 nights on average = 2100-4200 in lodging.
Food: 50-100 day for 2-4 people x 21 days = 1150 - 2100
Airfare: Many RSD patients need to fly first class - our airfare costs totaled 6,500 - for the various family members. At minimum on coach your looking at 1500 up to 6500 or so.
Taxis - Depends - 150-500 *incl airport to and from*

That's approx 45k right there...if you need to stay longer or need additional boosters, etc, costs climb. For us, we were in the mid 50's range for Mexico.

Boosters can range from 300-day to 2500 day.