gonna start working on the dart

man just getting started good on this car and starting to see where it will be and got the call tonight.......damn guy gonna come over and take a look and see if he wants it...lol now the ???? is what do you guys think it may be worth...when i got it the car had a 7 1/4 someone had put in....everything on the car works map light,buzzer for the door rev. lights,was told the ac worked dont know didnt even try it just pulled it all out, but still have everything for the car except trans....anyway the car now has a 8 3/4 with ss springs and positive unit and has 4.56 gears to go .......i really have no idea what do you guys think is fair to ask??????:D:D