Just as a comparison point, these are the costs of the top private jet tours over the next year. They are all 23/24 day trips. Most have 48 people, and some fly with a physician and chef.
TCS World Travel “Around the World” tour: $125,950 pp
Abercombie and Kent “Wildlife Safari” world tour: $159,950 pp.
Four Seasons World of Adventures tour :$205,000 pp
Aman Jet Expedition tour $159,950 pp
At $109,000 the
ABD trip looks reasonable. (Not that we can afford to go on it, but just saying it looks reasonable in that market)