you could look into a slighlty high milage defender (they should be around 15-16lacks now). But the best bet is to go for a petrol car and fit CNG. If you are ANti CNG like me then you pretty much have only 3 choices; UNO, defender & 205.
There is a slight chance you might be able to get a old surf in decent condition or a Hilux turbodiesel with leather, sunroof and auto gearbox.
Avoid the 2.0D corolla and Grand shortage/sportage at all costs!