The "trick" is that the 65k is limit is not about verts, but about "values" (as named by Si3v, the Lead track designer at Kunos). And "values" include any piece of data that a mesh can have (coordinates, UV mapping, and what not - I would not know to name them all

.
It is true that this info might be missing from first post (I'll check in detail), but it has been mentioned a couple of times otherwise..
here,
there,
here,
there,
here. Anyhoo - one more, does not hurt

. Good luck with the project, sorry you've lost time.. (ask the guys how come they "know" tho

)