mushkil hai.. in 6! i was in the same situation 6 mnths back.
u might get lucky... otherwise u cant get a mint vitz 99-04 shape within 6!
but then again a 60k-70k kms driven jdm vitz... might still be better than a 25k kms driven local crap
P.S i went for Chevy Joy.... best buy i believe... easily available around 5.5!