Whats it worth

Yeah, im starting to notice that :( . Oh well I didnt think being a 73 and right at the end of the muscle car era it would command a premium or anything..I just figured that the last time I was in Carlisle(missed the last 2 and will miss this year also) I saw ones in my condition or even worse going for $7,000-10,000 and actually selling at those prices lol.

I just would never let it go for that cheap(5-6K) id just keep it in that case.

Aim high and take whatever you feel comfortable with. Put it up higher than the going price, and in the end after negotiations, both sides of the sale will feel they got a deal. No matter what you put it up for, somebody will want to talk you down. It's like the reserve price at auctions, you can always remove it.
I mean really, if you have no real need to sell, sit it out and see what offers you get. In the mean time, I'm for having fun with it while you still have it.