I tried to buy a Bullitt back in August of 08. I offered one dealer 26k for a used one (1k miles). They would not take it. Quite a bit of time has passed since then, so who knows.
I will say... I am glad I did not get it. I bought a used GT premium for 20k instead, and have put all that extra cash toward mods. I now have my GT running better than a stock bullitt for much cheaper. Get a regular GT, then buy all the upgrades yourself. You'll have a car with better performance and more individuality.