back in the 1980s I purchased a 400 hp 1968 tri-power oval port engine out of a wrecked, rear ended corvette for $1000
I had it about 6 hours when I got a phone call from a guy that wanted that exact engine ,
he tracked me down from the guy I bought if from, I half-jokingly said,
Ill let it go for $2k.... he asked to get my address, I said cash only!
he showed up about 1 hour later with the cash, so it went on down the road.....
I later realized it was worth considerably more ,
but hey, I was about 32, had two small kids, and a wife,
and that deal paid my mortgage for a couple months