The $325K figure to restore both cars was ridiculous, unless that's in "Hollywood" money. Maybe it is, as a Hollywood studio will pay $50,000 to someone for a $3000 minivan so they can film it for 20 seconds, then blow it up.
These cars shouldn't cost more than $50K each to restore, and even that would be a high level restoration. There's nothing unusual about them, no special one-off parts, no "less than 100 made" parts, no hard-to-find Ram Air, transmission, or missing engine parts, they're standard 1967 Firebirds, with the only value being their data plates and history.