My comment had nothing to do with his asking price, it was just meant to emphasize that not every car can be broken down to a KBB value.
Case in point: Not too long I went to KBB to get the “value” of a 1995 MR2 Turbo with 20,XXX miles. It was somewhere around 5 grand.
I DARE you to find a car like that for less than $20K. It just won’t happen.