My first advice is don't sell it.
BUT ... if you must.
I'd glue the windows back in, because as you said, it's just elbow grease and no out of pocket cash, except for the couple $ for some JB Weld.
After that, I'd clean it very good inside and out, and sell it as is. Fixing any of those other things will not increase the value as much as the parts will cost, especially the dash pad.
I think if I were selling one of my stangs, I'd put a reserve auction on our favorite auction site and see what it brings over my reserve. Mustangs on that site seem to sell for about twice what their worth /forums/images/icons/wink.gif.
BUT ... if you must.
I'd glue the windows back in, because as you said, it's just elbow grease and no out of pocket cash, except for the couple $ for some JB Weld.
After that, I'd clean it very good inside and out, and sell it as is. Fixing any of those other things will not increase the value as much as the parts will cost, especially the dash pad.
I think if I were selling one of my stangs, I'd put a reserve auction on our favorite auction site and see what it brings over my reserve. Mustangs on that site seem to sell for about twice what their worth /forums/images/icons/wink.gif.