The straightening of front beam is an easy (comparatively) fix. It would need to be taken off the car, dismantled and taken to Saddar where it can be straightened in a hydraulic press. It would come out straight as an arrow. The procedure has been done several times before so don't even give it much thought.
What I would recommend further is to, while the beam is out, refurbish it. Cleaning of the outside, which undoubtedly would be caked in years of dirt and grime, should be a done now. At the same time the leaf springs (which would have been removed from inside the beams when the beam is taken for straightening) should be checked to confirm none is broken. The insides of the beam can be washed in Kerosene, dried and re-lubricated using a good grease before putting everything back together. The zerk fittings (or grease nipples) should be removed and cleaned (preferably replaced). The torsion arms should be checked for wear and refitted with new torsion arm seals so the grease stays in and the water and dust out. This would also be a good time to rebuild the link/king pin set-up.
Another important part to look at would be the steering box. It can be rebuilt too if it isn't too badly worn out. Do replace the coupling disk as it would be dried and cracked if not replaced by the previous owner. It is a small but important from the point of safety part. Replace it.
Then you would be left with the tie rod ends. Check for wear and signs of any trauma (hammering) on the round side even if they feel tight. It is common practice to 'press' these to squeeze some extra life out of them or just before the car is sold to fool the new buyer into believing he is buying a car with a good suspension. If the tie-rod ends are buggered..replace them! These vital parts are directly linked to your safety on road as I am sure you'll be heading for the hills the moment your car is in half decent shape.
Once your front beam is refurbished and the suspension rebuilt you would have done about 40% of the chassis rebuild. Important is to do it right so you do not need to return to it for a long time (other than routine greasing)
Good luck!
