I have aquired a German spec 250 ce. The car has a dead engine due to bad (unlucky?) rebuild and I am told that the head can not be skimmed again due to valve clearance. The car is a manual trany. What are my options as far as finding another engine that will go into the car? Is the 250 ce engine a rare beast in North America? It would be a shame to scrap a one owner car in as good a shape as this one. Thanx for any and all info.