Auto Parts: find cranks for engine, competent machine, ford taurus

Question
If you can help me find used cranks for engine 3.0 L Yamaha Ford Taurus SHO 89. I live in Costa Rica and can´t find it here. Thank you very much for attention.

Answer
    I sincerely doubt if you can find a used crank anywhere for that engine.  Is there a good reason why yours cannot be repaired?  Almost any unbroken crankshaft can be reconditioned by a competent machine shop.  I have to believe that there is at least on such shop in Costa Rica, there are too many Americans living down there.  If not, there must be one in Panama.