Should I sell it? What's it worth?

I disagree with " simon325e " if it was stock notch back 340 car ...Personally i would not give it a double take ... BUT being the modified version now .. I feel he did an excellent job and it looks MUCH better....
Lets not forget the NICE STOCK looking 69 yellow 340 barracuda that could not get 18000 . Now as a group ,,, we are stating this car is worth 20000+... in a modified form ... How much would this car get in stock appearance ??? I guess what i am trying to say .. some cars catch MORE lookers/buyers when modifications made ... and this in my eyes is one of those cars .