Yes, LC80 is a better than Patrol due to reasons stated above i.e. parts availability, parts cost, natural love for Toyota in Pakistan. Diesel 80's do 7-8 kmpl if in good health. Finding a clean one is a challenge.
2 million can get you a good Prado 96-97 or a later years Surf (only 5 seats), both of which are good vehicles for new off roaders. 2 million can get you a better make and model than 12-14 +2 but you will still need some extra to sort out the basics. If 2 million is manageable, focus on Prado n Surf unless you have a strong liking for LC80 n Patrols.
Vitara 2005-06 is a good vehicle and depends upon the level of offroading you want to do i.e. usually not used for serious offroading due to limitations of power, ground clearance, flex etc.