Just bumping this thread to report back on the successful sale of my 9-year-old car to a young mechanic this week. He honored the same price agreement we had made 5 months ago. Before I came back to him, I had the car detailed on the inside and made some other cosmetic fixes. He never asked for the vehicle history but had to have known there were significant issues with it. (Even if I didn't offer him all such information -- I honestly don't remember because of the 5-month gap -- anyone can hear the car when it's driven, and he heard it again on the day we finalized the transaction.) That often doesn't matter to a mechanic, because he, not a dealership, will be its new mechanic. He valued the V6 engine and the brand name (make/model). And interestingly, he, too, was (5 months ago) additionally concerned about appearance, remarking that his "wife would be bothered by the dents." Wow, that's the least of concerns. (Suspension? engine mount?)
In any case, immediately after the detail job, a mechanic in that shop indicated a similar interest in buying the car and was willing to submit a bid if the sale to the mechanic didn't materialize. The detailer also was interested in having his own "toy" to tinker with. (External flaws remain: paint, dents)
This was just so much easier than putting the car on the open market. It might never have sold at all, and certainly wouldn't have reaped the price it did! No online calculator met the price the mechanic was willing to pay, and in any case calculators stop at 200K miles. (Mine was over that.)
I never published a classified ad. I merely drove it over to a local gas station which also repairs (I had first brought it in for a tire repair), and then to a detailer. That's how I obtained both potential customers, by casually letting both know the car was for sale. No pressure or solicitation from me; no resistance from the customers.