I got the truck back from the Ford dealer. I had asked for about $300 in service interval work to be done including a great many inspections. Passed everything just fine.
We discussed four warranty items and they were all fixed: the Ford emblem on the front grill had gotten weird looking, the rear sliding window wasn't happy, the door pull on the inside of the drivers door had significant play in it, and the driver's side key didn't like to open the lock and you had to jigger it. Nice.
I talked to the finance dude about the FordESP. Of the four levels I zero'ed in on the next to the bottom, powertrain plus air conditioning. He quoted $1955 for a 6 year 75000 mile plan with $200 per-incident deductible (3 more years, 40000 more miles). I'm not generally an extended warranty buyer, but then this is a used vehicle. And I can cancel after one or two months if I later decide to do that.
My feeling at this point is that I can afford to "self-insure". If I get hit with a $2000 covered problem in a year or two, I'll just pay the $2000 then rather than now. If it's more I lose. If it's less I win. I think it's unlikely to happen by 75000 miles, and that would just be a break even gamble. I feel pretty good about the situation and rather doubt I'll get the plan just to buy a month or two in which to uncover hidden issues.
The support of this group has been awesome as usual. Thanks so much.