How much do you think this 1960 Bel Air is worth?

It's impossible to say for sure without a detailed examination of the car but I suspect the price is too high for a six with a two speed powerglide transmission. The car is OK to look at but absolutely no fun to drive. If I had to guess I doubt it will do 0-60 in 15 seconds. It would actually be dangerous to drive on an interstate because you couldn't accelerate fast enough to merge with traffic.