Not very often you find a `59 Impala with 12,000 original miles. This one, according to the description on eBay, was customized right out of the box in 1959 and was known as "Little One" during the 1960s. Quick search of the Internet doesn't find any records. Starting bid is a nickel under $30k.
My thought is that the car is probably worth the money, if it can be documented both as a low-mile car and as an ex-show car. The mods shown in the crummy auction pictures make the second point very likely. The fit, finish and drivability of the car would prove the first point. The pictures on the auction do nothing to add value, as they are grainy and badly posed.
I've sold $40 bicycles with better pictures than this!
Auction ended with no bids. Maybe we'll see it with better pictures, next time `round!