Had a client who bought a used motor home, supposedly a rebuilt engine. Drove it home from the dealer (20 miles), then embarked on a long-planned vacation the next day, engine seized about 10 miles from home.
He had bought an extended warranty (not cheap), and they tried everything short of armed extortion to wiggle out of it.
"He should have checked the oil before he left on the trip."
Really? Do you check your oil every 30 miles? And it wasn't low on oil anyhow.
"He was driving it too fast."
Really? He's 80 years old, and all 4 family members along on the trip were harassing him about driving too slow on the Interstate.
I finally had it towed to the most honest mechanic in town, and had him do a "forensic dismantling" of the engine- he saved the oil that he drained, took pictures of everythng. The center main bearing was cooked- the blue color from overheating was obvious in the photos.
Still they wiggled, trying to make a similar offer to yours- junkyard engine. Nope, rebuilt engine, just like you sold to my client (my mechanic questioned whether it was actually fully rebuilt, but we sure didn't go there, for obvious reasons). They finally did it, but it was like pulling teeth.