I recently found an '81 745i for sale in the local paper. There is some major front end damage, and he wants $800 for the whole thing. The engine runs, but the car is not driveable. I am interested in buying the turbo system from the car for possible use on a 635CSi (it was, after all, listed in the section for parting out). It is supposed to have 135k miles on it. I was wondering what I should pay for the turbo, and if anybody happens to know what components I will need.