[NYNick]

Eyeballs are key. A pre 81 with less than 40k is a rare bird and would raise multiple red flags for me. I'd be all over that thing like a hound dog, and get a tech involved as well.
The 200k deal with records depends on what the records say, when they say it, and what your gut tells you.
If was choosing first, I'd heavily inspect the low mileage example. A lot of upside if it proves to be true.