1972 duster 340 value / worth ?

Without seeing a pic, and cash money, asking price 10 grand ( someone may talk ya down to 8500). Now redo it clean nice paint and interior,15 grand. I may be way off just being realistic. There are two kinds of cars, the ones that are done, you buy and drive, and the ones that need work. How much will it cost to repaint anfd fix all the things on it and there is always something wrong, or incorrect with them you just have to find it.