well that didnt got to be a long discussion . did it?.
for lahore use, spectra is right, 4afe 16valve is good choice , will give you around 110 hp with some performance tuning will run along nicely with stock engine local assembled cars,
best is parts easily avaliable,,not expensive.
engine not beyond your range. just change worn out parts of brakes,
invest in low profile tires 16" rims will look nice. drop the car an inche.