I broke the Toyota Turbo

Boy, I am complicated, bought a Toyota Corona TD 2.0 year 2000. Its former owner is seen that saved by putting common water to the radiator, result ... the lid was peak and the aluminum particles came out through the exhaust valve, entered the turbo and broke the exhaust turbine. You can't repair, I have to buy a new one, that suggest me ...? Pd the original is like 15 Lucas.