Let me rephrase my earlier statement; We know who owns all of the Yenko Novas 'that have been found'. We obviously don't know who owns all of the Yenko Novas since they have not all been found - yet!
Public answer to some emails:
The 'want' factor is such where a prospective buyer feels the asking price is more than the car is worth, but will pay it because he 'wants' it. Basically 'perceived value' vs. 'selling price'. In my discussions with buyers, the 'want' factor rarely exceeds $4k, which is an interesting stat to consider when analyzing the market value on the Yenko Deuces.
As for cars selling in the $70k-$80k range, it is surely possible - for the right car. There have been offers in excess of $60-$65k for restored Yenko Deuces, but the cars were removed from sale before deals could be completed. So, I would speculate that if more of the 'Top 10' Deuces were to be made available for sale, you would see prices in the $60k + range.
The restored Yenko Deuce Novas seem to trade hands less often than other types of Yenko Cars, just an observation. You would think that when the values go up like they have, that the restored cars would sell - especially those cars that would result in large profits. However, that doesn't seem to happen, not sure why - I won't bore you with theories
The project Deuces on the other hand trade quite rapidly when the values go up, and as you can see many of them are new finds. This is logical, as the owners see the rising values for other Yenko cars and feel it's finally time to 'come out of the closet' and sell the car. In almost every case, the original asking price for the project car is quite a bit higher than the final selling price as the seller gets a bit of an education on the true market value of the car.
Interesting times!