We'll see about that. If Mr. Anderson is playing "I told you I can get 777s for less than 10 million" but "I didn't actually mean "serviceable condition to put it into service" then yes, you are right, he will have the last laugh.
However, the tenor of his argument was Boeing offered him 777s for "10 million", so that means Boeing offered him flying birds for 10 million, and if Anderson can show the books on how he got the plane in Delta-spec flying and operating condition for 10 million, he wins. If not, he loses and he has egg on his face.
We'll see if this 7.7 million dollar bird will be for spares or will be in fleet use.