things go like this
model of vitz first generation from 1999 to 2005 was launched with 1.0,1.3,1.5 engines
in this model 1.3 is a bit coman here in pak with manual transmissions
1.3 with 2 engine
1 2NZ-FE with 85hp same engine came in corolla
2 2SZ-FE with 87 hp with high compression 11:0:1
so batter find any 1 of these
1.5 is very rare .....
1NZ_FE 110 hp and 140NM @4200 rpm
but you can find this engine in market ..and every thing is available
this engine came with addition 1.8l 2ZR-FE 132hp and 174NM
but to be honest i have not seen yet even an 1300cc new vitz....
and their is big reason behind it ...high import duty on cars
1000cc vitz cost around 12 lkah or 13 lkah brand new.....
so 1.8 even second hand above 2007 model will be at least above 25 lakh...cuz duty will be same as n a 1.8 honda civic
solution to you is.....buy full face cut of vitz ...and replace it with your current car...
a friend of mine and pakwheel member as well did this in his 2 door first generation vitz
he bought 1.5 along with complete front..which includes engine,wiring,suspension,brakes,sensors,fenders,hood,front bumper, and every thing which is inside engine bay ..for around 150k
so will suggest you do this way...or you will be buying something which is not worth it