With the 21 day Queen's package all animals on license. However some animals you are allowed to take two and the Cape Buffalo you have 3 on license.
The Selous will be a good place and you will have a lot of fun. Try and learn a few words of Swahili before you go. you will be ahead of the game. Some will speak English however some in camp will not. here is a translator for you to use.
Swahili to English translation
Looking over the area where you will be headed.
Good to great Elephants come from this area. Elephants are smaller than the ones in Botswana however we bumped into them daily. and at close range sometimes. Them buggers are like grey ghost and just pop up. you though they had sneakers on.
The cape Buffalo will be in the 40" range some bigger and some smaller, it will take a good eye to find you a good one in the group. many lone to small groups of bulls will be spotted. the herds will be a little harder to get up on.
The area has the nyasa-land-chevron wildebeest and Lichtenstein hartebeast, plus southern impala.
Area is known for good warthogs, fine leopards and mature Lions.
Area has some nice bush-buck, very nice Eland and Eastern greater Kudu.
Your camp should have Hippo (these monsters are on dry land a lot and you could just bump into them out running around. Your trackers will be watching the road for track and the hippo has 4 toes and the middle 2 sometimes look like one toe, I am not sure about a river system in your concession that could possibly include Crocodiles. You will find hippo in dry river bottoms as long as there is water to drink nearby.
Spotted hyena, Ratel (honey Badger), porcupine, civic cats (great trophy we saw 3). We continually ran into the spotted hyena and they are not scared of you.
Baboon and monkeys are plenteful , bushpig, caracal cats, dik dik, duiker, Reedbuck, Sable, Waterbuck, Zebra,
Bird hunting for geese, partridge and other birds are available. You can take 3 guns to Tanzania and you should consider a shotgun to go after the many birds you will spot. Just see ahead of time if ammo is availabe to purchase over there.
Your concession is just south of the one that i was hunting in.