[Lynn]

You might want to consider just selling all the cars as is. Takes a lot to get one perfect. Special interest cars will bring decent money even when they aren't perfect. Making it perfect will be a labor of love for the new owner. Even with all the things William mentioned, that Z10 is already very close to the point of diminishing returns when it comes to making it better just to be able to sell at a higher price. Someone aching to buy a Z10 will want the car. Like Kurt said, if it has the original drive train, that is what is going to drive the price up more than anything else. If it doesn't have the original engine, you would be throwing money away making it look more original.