I think it sounds like a good deal.Just as or more important would be your relationship with the PH on such a DG hunt.

You may wish to ask the average size and success rate of attempts at previous Buff taken and the stability and history/ownership of the hunting concession to be utilized.

Do you not also have the option of another Buff as well for an additional trophy fee? That's great!

I do believe and agree that tipping is far more substantial than you allowed though--