So basically you are dubble posting, also coming here to beg for used engines.

The why people do not want to sell old worn motors has a simple answer. Even if you tell the buyer the engine is not OK anymore he still will complain. Have seen it many times.... Beside that, there is no market for bad running engines.

To me, I save all the stuff. Sometimes when I am in a mood I select stuff to make a practise engine but I also save parts as spares.