Thanks for all the feedback.
To answer some of the questions, here is where I am getting my numbers:
Direct cost to Safari Outfitter (5 animals, daily rates for 10 days, arrival/departure days, airport transfer): $12,200
Airfare (roundtrip business class, Qatar Airways): $3530
Dip/Pack/Ship Trophies (estimated): $1,500
Euro Mounts for 5 primary Animals (based on price list from a studio): $1744
Gratuities (PH, Trackers, Skinners, and Camp Staff): $2750.
Total: $21,724.00
So to have a cushion for extra animals, incidentals, etc. I figured $25,000.
My wife really wants to come along and do all the photography, videography, etc. However, with a young child now and plans to have more before I would go, it is not likely she'll want to be away from the kid(s) for 14 days. However, in the budget, if she went, to add observer daily rates, departure/arrival, airport transfer, and airfare, I would add about $7,629 to the cost, and increase the budget to probably $35,000.
I have talked to reference for the particular outfitter I am looking at. They are highly recommend, but I know they are not the cheapest. One reference planned a 10 day-5 animal hunt and his quote was very close to what I have budgeted (he had a couple different animals in his plan).