Just curious as to how much a 69 GTO with a Ram Air IV, automatic is worth in fair condition?

The market is wide open. If the car is a verifyable Ram Air IV car, it's worth a lot, even in poor condition. Hard to put an amount on it. Probably anywhere from $7,000 to $20,000, depending on condition, options and completeness. If the air cleaner "Ram Air" system is intact and not rusted out, it helps. Aftermarket restoration pieces for just the Ram Air is over $1,200.