Charade has made a Come Back!!!
Nice clean car there. Everything is at its right place, do it a favour...place original CB23 NA petrol engine (the one this car came 32 years ago). Some nice engines are available in the market. U r in isb, so check out Gulab Sher Autos in rwp. Ishtiaq or Afsar @ 0300-5535856. They also have mechnic to fit this engine, least wiring changes.
Later engines like HD-EG 1.6 and HC-E 1.3 designed for G200s chasis are larger and heavier. Moreover ECUs loom require elec modifications and Being a lager engine require a compatible larger radiator for which u might be running short of space in the engine bay. So load on your cooling system, electric system, suspension. H series engines are cheaper, but labour cost is around 10K. CB engines around 25K after u give out your desiel engine, and labour cost 2K.
Toyota engines...no way
So make your choice