Kenya and Tanzania.
I am familiar with the regulations in Kenya and somewhat familiar with Tanzania. They are much more strict with their paperwork in these countries. To enter you usually have to have a Carnet De Passage or a triptic. This is a guarantee that you will not sell the vehicle in the country or if you do that you will pay the customs in full. For Kenya this is up to 150% of the value of the vehicle, and I think Tanzania is similar % though a little lower. If you lack a carnet then you will typically have to pay the customs on entry and then be refunded on exit. If you manage to get in without these papers then sell the vehicle, it would be up to the person who buys the vehicle to register it and pay customs, the price should reflect this as they will have to pay the fees. The upside is that vehicles sell for much higher in these countries (once the taxes have been paid). You can only legally import a vehicle in Kenya if it is less then 7 years old. Tanzania and Uganda do not have the same restriction on age. I believe that Uganda is less strict then Kenya or Tanzania and you might have more luck there or further south like in Malawi (the customs is generally lower but international currency more scarse), or zambia. You do have the right vehicle as toyota Landcruisers are selling for high price and greatly desired. good luck, hope to see you when you make it. I am in Malawi now in Lilongwe, look me up. william