Is it worth it?

I have a chance to buy a '68 Barracuda and I need some help deciding. The car's a coupe, 318 / 904, P/S being the only option. The car was painted seven years ago, at which time the current owner did cheater quarters and driver's side torsion bar mount. Otherwise, the car was solid. Still has the original floors and trunk. When it was painted seven years ago, the car was totally stripped (including glass removal) all the way and everything was taken out, except for the wiring harness. That's the way it is today; still stripped of parts, but painted. However, the paint is showing its age, somewhat, because of small scratches and a couple of chips in the paint from not being coveredall these years. The paint is presentable, but not show quality, for sure. The owner has all the stuff to put it back together, including a new interior, window felts, door seals, trunk mat, etc. It still needs bumpers, door handles, plastic rechroming and alike to make it a presentable driver. It's dark green and dark green (which doesn't help the cause). He's wanting 5K for it as-is. I figure 3500 to 4000 more to put it back together and roadworthy. I figure it's worth about 11K finished. So, the question is: is it worth the 5K he's asking? Am I right about it being worth about 11K done? Geez........I don't know