Is this car worth 8000

Look over the cage really well, if you're wanting to run it on the track. Make sure you fit, i.e. the hoop isn't too far forward, halo isn't too short, etc. Check the welds on the cage, look at cage requirements for the ET you want to go. Chassis work isn't cheap if you can't do it yourself, and it's tough to tell in a few internet pics how nice the cage is. The going rate around here for an 8.50 moly cage starts at $4k, and climbs pretty quick if a lot of shoddy work has to be cut out and re-done.
I bought a mid-80's charger a couple years back (there's a thread on here somewhere), drove 6 hours to look and find that the cage was too short, too far forward, rear framerails were junk, front suspension wasn't trackworthy, etc etc. Still bought the car, because I got it for half price and I enjoy the build process. Just know it can snowball quick if you want it built right, and safe.