Agree with abodyjoe and AdamR. They're not being rude, just smart. A car is basically worth whatever it is worth done, minus whatever it would cost to bring it to "done", but then even less, because time costs also.
It's nowhere near a $6500 car. You don't have to go look at it in person to tell that much. There's enough info given to tell that. It's not all that valuable of a car "done", and it needs a lot of expensive work. Hell, that car isn't worth a ton more than the $6500 "done".
But is it a cool car? Hell yeah. I love it. Would love to have something like that. But, I'd have to tear it apart too. The damage/wear/neglect/abuse isn't "cool" like a rat rod cool, and it's not nice enough to enjoy as it is. But, it's also not really worth restoring either, if you look at it from a purely financial perspective. So what you're left with is something that a hobbyist is going to want to restore or restify themselves for fun, and currently, i'ts priced too high for that type of a person to pay any attention to it, or even make a serious inquiry. When you first listed it, I clicked on the ad, thought cool car, read the info, looked at the pics.... then saw the price, and closed the page and moved on.
Also, too many similar cars lately have sold recently in far better condition for similar prices to your asking price.
I won't say the price I think it's worth, as that seems to be a touchy subject even though you asked, but I'll say it's closer to AdamR's price than to the current asking price.
