Maybe to give some idea; I bought a '68 Barracuda notchback about ten years ago that had a fairly decent resto job. Entirely new drivetrain with a 360/auto, new upholstery, carpet & headliner and a decent paint job. I paid about $6,800 bucks. As you may already know, the "A" body cars don't command the same money as an "E" body, but are still very desirable. I just thought I'd thow that out there since you've not provided much in the way of details. If the car runs & has a good drivetrain, has a recent/good paint job & chrome/trim and has a good interior, I'd expect to pay in the 5K to maybe 7.5K range. If it is a Formula "S", numbers matching car, I'd expect to pay in the higher end of the spectrum. I did notice you said "survivor" car. So assuming it's not been painted/restored, I'd say maybe 5k unless like I said, it's a numbers matching Formula "S" car or is in remarkable condition. I think the formula "S" cars were 340 or 383 engines.
Matt B.
