The gentleman requiring the vehicle is not interested in swapping. He is merely opting for a cost effective solution.
Having kept a swift and charade i would prefer a charade anytime due to my passion.
It is not the best cost effective solution at hand I must warn you inadvance.
A good charade will cost you around 3 lacks which includes a cng kit , ac , well maintained and not abused. The risk element is still there as genuine parts are scarce and taiwanese and chinese parts dont really perform well.
Bodies will start to wear out due to age along with chasis and engine.
Rebuilding a beat up charade will eventually end up in high stress and frustration not to mention financial setback
i strongly recommend that you opt for a mehran . A good one will be available for 3 lacks. parts are dirt cheap. you can rebuild it easily , resale is no issue. In todays economic conditions this would be the best option. Other then that a cuore but then again your budget will have to stretched.
I can suggest other cars as well however i must stress on mehran.
hope you find a nice car.