Remember one thing that liana has no resale value................and also i heard some engine problems with lianas.
So be careful what you pay for it because you will definitely take a hit if you resale it.
I think you shouldn't go anymore than 850K. this is about what i seen in sunday market here in islamabad.
Moreover local car bazaar is good for checking value of cars. Avoid car dealers as car dealers would lie to you all day long.