What if I plant it in a small pot, it will have limited resources, btu still a fast growth.
The pot will be in a tiled court yard in my house, there's no soil or holes in there for the vine to escape to, it's also out of reach and sight for people who may want to grab some of it.

Kudzu is a horrifyingly invasive weed. It's also banned or listed as noxious in most states, so you might want to check to see if it's even legal where you live.

>> We need ways to kill it all, not expand it's range

Kudzu is a subtropical plant controlled by aridity. Tunisia is Mediterranean desert, I think, not humid Georgia woods.

The north of Tunisia is wet (humid) and warm during the summer (inless you cinsider 9ðC warm, the tempeture doesnt differ between the areas in Tunisia, but precepitation and humidity does)
The center of Tunisia is semi-arid, that's where I live (Kairouan), and it gets very hot in summer, and it's not very humid or wet, even in winter (it used to be more humid during the seasons other than the winter around here many years ago, it's global warming I guess)

The south of Tunisia is the sahara, a desert.

This is a map for the climate: http://www.hydriaproject.net/images/cases/tunisia_kerkouan/T2_map_climatic_of_tunisia.jpg
And precepitation:
http://www.bestcountryreports.com/Precipitation_Map_Tunisia.php

I guess it will be no problem to plant it here, but I'm still not going to take risks and going to keep it in a pot and isolated.

>>We need ways to kill it.
I heard that excessive forage and continus removal of the plant that starts to appear on the ground adventually depleted the energy of the plant that is stored in the roots, as it's only ways to generate more is by photsynthesis wich will be blocked, it may need some years of work though.
Or they can develop some kind of fungus or bacterial to take it down, they did that to rabbits in Australia and 90% of the population was gone, only the strongest and immune 10% survived.

this thing is highly invasive with no natural predators to keep it in check unlike its original environment. I don't recommend spreading something like this anywhere.

Kudzu is the absolute worst invasive plant that I've had to deal with. You must be insane to want to grow and spread this stuff. This stuff make air potato look like marigolds. You really need to google some images of all manner of things being overtaken by this awful plant ... forests ... homes. .. cars. ..you name it. You need to read about the poor people who cannot get rid of it and their experiences, and suffering, while trying to and failing for years. This plant can't be chopped down, poisoned, dug up, etc. The stalks turn into rope when you try to chop them ... the plant laughs at poison and each leaf node sends down a root that can't be dug out. I had an acre of it and I would have needed an army to get rid of it. Good Lord you must be able to find another forage plant that is not as evil as kudzu. It makes me sick to the stomach, and see red, every time I start reading another forum and you're there asking for kudzu.

I've never heard of anyone asking for kudzu. Here we have to cut it back from the road in the summer just to keep the road passable. I have to say though when it's blooming, it has the most wonderful scent. Unfortunately it's killed everything on the other side of the road and even pulls down small trees. The vines are that strong. It's very humid here. I don't know how it would react to a dry climate.

>>>We need ways to kill it

Goats do a great job of keeping it in check. They love the stuff and eat almost as fast as kudzu grows.