Should I sell it? What's it worth?

My experience has been that for the most part guys who are buying these $30.000 plus dollar cars is that they are willing to forgive engine mods.But the car and interior should be left stock.
The Satellite that I'm doing right now has a 750 hp low deck with a liberty 4 spd...The interior has a suede headliner and the gauges have a white background and the electrical had been changed over to a painless set up.
The new owner loves the engine but wants an auto like it came from the factory with.He wants to see the original electrical bulkhead connector under the hood and a stock looking interior and exterior.And hes not alone...I've done 6 other big dollar $40-$65.000 cars in the last couple of years changing personal aesthetic mods done to cars back to stock...
To each his own I guess