You would probably be better off parting out the car by exchanging parts for stock with the buyer of the parts.
The market for these cars is really stubborn.
People are willing to buy a stock car in the mid 30's and put $10k-$20k into it rather than pay $40k -$50K to buy it already done.
If you try and sell it with all of the stuff done it appears you will never get any of the money back out.
I have considered this route lately myself.
I have alot of the desirable mods and well functioning systems. Heads,Cam, Stop-Tech big brakes, 18"/19" wheels, power steering pulley, billet steering bushings, jet coated belanger headers, ACR shocks (rebuilt with KONI interanls), Awesome aftermarket sound system. COLD A/C, bigger oil pan and and upgraded internal baffle, Uni-trax half shafts, SCT tune. The car would cost over $20k to build today and right now I am staring at an "A"-arm bushing replacement and new tie rod ends. What else could anyone want? Will someone step up and buy it? Maybe, but it will take awhile to find that buyer.
Good luck with your sale.