This Torah was missing one Eitz Chayim and the ink was already fading away. All in all, the scroll was in not a grade state, and surely not Kosher. Note how it has been cut in the bottom margin, rendering it not Mukaf Gevil, which by itself enough to invalidate the whole scroll.
The guy wanted 5000 dollars for it, which is an exhibits to amount of money to spend in a scroll that is not usable. Plus, there's a prohibition of purchasing a scroll like this because of the fear of encouraging others to steal scrolls intending to sell it back to jewish communities.
Nowadays, many scrolls are inscribed with an invisible mark which allows experts to trace back the origin of the scroll but 150 year old scrolls like this one and difficult to trace and identify.