HELP 8-3/4 741 case new stuff - price for setup - options

Not long ago I sold a; known to be quiet, very low mileage, 489 cased 4.30 chunk, with a 7290 Yoke, and a reconditioned "posi" in it, that I had personally set up and broke in;
for $450 Canadian ....................
The reconditioned Suregrip was worth almost that much.
I got NOTHING for my time.
But it was just collecting dust in the corner so, IDK .............
Dang...yup I think it was worth at least couple hundred more US than that.