Thanks all,
We're still a little undecided. We went to see the Honda Accord 105k miles today, but without my daughter. Took lots of pics including the VIN. Definitely not part of the Takata airbag recall. Haven't paid for a Carfax yet. But the guy had seriously meticulous records. He bought it as a CPO in 2010 and serviced it at a reputable Honda mechanic in our area (known to have great reviews and reputation) Has receipts for everything.
This was the "friend of a friend" that we didn't know personally.
After talking to him personally, found out it was the EX-L model with a V6 engine. Top of the line for 2007. And that he wanted $7500

.
When we met him today, he admitted he has never sold a car private party and hasn't done his research. I have... even for a EX-L with a V-6 we are at $6100-$6600 if very good condition. There were considerable scratches/scrapes on the car. But everything else checked out great. DD won't care about scratches... she's going to live off a gravel road next year.
It's due for a big service. Timing belt. His mechanic quotes it at $800. I'm thinking we offer $6000, and after we pay for the timing belt we are at $6800 for a car with meticulous records, 105k miles, but dings in the door. Dealerships are asking $7900-$8300 for such a car.
I think I've decided against the Lexus with 150k miles. Undecided about the Honda. And we might even insult him with our offer. Good news is both he and us are super busy this week, and can't do anything about the car until the week after.
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While I would like less miles, there is virtually nothing dealership-wise at our price point ($6-7k) that is much less than 100k. We are getting an insurance check for $5200. We can afford to chip in more, but not much, for the right car. And did I mention I live in Houston a month after Hurricane Harvey flooded our city???