Looks like $56K plus tips, airfare and incidentals. About average for a lion hunt, though 21 days would be better. Deduct $4500 if you don't bring an observer.
Since it's Zim, one would expect a totally free range hunt, but it's best to ask in advance.
Male lion?
What time of the year?
Which concession?
Will you be the only hunter in camp?
Might have to shoot another cow buff or giraffe if the bait supply gets low or too rotten. That will mean more $$$.
What has been the success rate for that concession?
Skin, dip and pack fees?
What experience does the PH have hunting lions?
These are questions that need to be asked before you sign on the dotted line. Just saying....