you will not find a good engine in Karachi scrap market. Goto Quetta 2E 1.3 Carb engine from 1987 - 1994 RHD Corolla [discarded in afghanistan now ] are available in range of 15 - 23000 with auto & 5 speed manual transmission. Add another 2000 ~5000 for transportation to KHI. Payment terms - 50% advance 50% at time of collection in Karachi. It depends purely over the bargaining skill of buyer. I got one for 21000 with 5 speed in Nov 2014 - engine is now connected to a Generator transmission i gave away as labour to the mechanic for fabrication & coupling