@Swaleh01 we are also based in Kenya

Anyway @luttz has given you a good food for thought. Ugandans import it too, if you buy from them then you'll be buying an old one just as good as you would buy from me in Kenya. But if you import, you get a better condition used tractor. I imported too, and it's quite straight forward and cheap. There is no restriction of age like motor vehicles. There is no 8 year limit, you can import even 1980 tractor. Try Dumelow International, all the MF tractors you see around in the yards are coming from this guy.
And yes, you can import from UG and register. Very easily. Just like the car.