Am I asking for too much?

He's not the first member to ask for "brand x" help. And look at it this way: he's looking for help getting rid of one! ;) I can't offer any pricing help DroVal, in my area a running driving clean Z28 like that would be gone in a "heartbeat" at that price. We tend to have two extremes here. Beat to death, or well preserved/immaculate. Yours falls somewhere in between. Aka, normal wear and tear.