Generally good advice, though I must respectfully take exception to two points:

1. If you can afford to do so, upgrading from coach to 1st, or even Business, Class is worth every cent if, like me, you're in your 60's or older.

2. Bring more, not less, ammunition than you think you'll need. When I hunted on the Selous, it happened that another hunter from a camp many miles upriver arrived sans ammo because his airline lost it in transit. Fortunately, he was shooting a .375 H&H and I happened to bring a spare box of ammo with me, which I gladly conveyed to him. Aside from such eventualities, your PH will appreciate your giving him such ammo as you have left over following your safari.