What is a good price for a 66-69 Ford Mustang?

I want to buy a classic mustang. I don't care whether it's a v8 or not but I've heard that 66 mustangs don't have airbags? Do 67-69s?

Airbags aren't in Mustangs until 1990. Airbags don't significantly increase safety, as long as seat belts are worn. Good Mustangs start at $20,000 and go up to $650,000

Everybody wants a 66-69 Mustang!
Like the old adage says: If you have to ask, you probably can't afford it.
Bob is right- I think the quality of Mustang for less than ten grand will be marginal at best.