My first trip to Botswana coming up first week in June, just under a month away, and need good insight into best medical evac program. I see Global Rescue, Ripcord, and Medjet Assist all with mixed reviews. Denver through Atlanta to Johannesburg, overnight then to Maun and PH pickup down to Ghanzi. 70 year-old male, heart attack in 2014 and 2 types of cancer in the past 4 years. Given those facts, which would be best option? Total trip time about 11 days, door-to-door.