it is tough. you have to find the right buyer that actually sees and feels the value in what you've done. most people want a stock car. I've always, always, always found it better to sell aftermarket parts separately and to sell the car as close to stock as possible, in terms of getting the most $$ out of it.
if you are dead set on selling it as-is, just list it a couple grand over what stock ones are going for. you might run into the right buyer. it's rare, though.
if you are dead set on selling it as-is, just list it a couple grand over what stock ones are going for. you might run into the right buyer. it's rare, though.