Real Africa has a grand set of options in Tanzania safari for you. There is the luxury Kilimanjaro Climb spread over 11 days that is fully supported and equipped for comfort. You can also try the Tanzania in luxury that will give you 10 days to explore the wilds of Tarangire, the iconic Serengeti and the Ngorongoro Crater, a UNESCO World Heritage Site on a private luxury safari.
A luxury Tanzania safari is what you would call Tanzania lodge safari and Zanzibar that is spread over 13 days. This is the classic lodge safari of the Northern Tanzania circuit that includes the Serengeti and Ngorongoro followed by a week on the beautiful island of Zanzibar. You can go off the beaten track by a fly-in lodge safari to Southern Tanzania too. In this you can visit Selous Game Reserve and Ruaha National Park after which you finish with 4 nights relaxing on a private island in the Indian Ocean.