Patrick67BJ8 said:
What is the difference between a factory Le Mans and a standard 100 that hs been fully converted except for the place the work was done?
The difference is provenance.
They didn't use the word "clone" for cars back in the 1950s, but if you take a standard 100 and fit all of the "M pieces," you have what is now called a clone. It's not "a real one." It wasn't made, new, as a 100M, and it wasn't sold as a 100M model.
You can make a helluva 427 Cobra today for under $100,000. If you have one that was made by the factory in the 1960s, bidding starts at, what, $1,000,000 and up? You can shrug and say that they are the very same thing, but the market - and the provenance of the car - will disagree with you.
Clones are often wonderful cars and I would not turn up my nose at one, especially considering the cost savings, but it will never be a real one, and that means a lot to a lot of people. The way the market is going, a reasonable rule of thumb might be that a 100M is worth twice (100 percent more) what a standard car is worth, and worth 50 percent more than a standard car with the Le Mans kit.