I'd say that is a good price if it is a real Cuda, and depending on the quality of the car. The market is definitely down right now, no telling how low it could go, or if/when it is going back up. Not much is selling. I keep seeing the same cars on Ebay over and over again, and not much on Cudaworld has moved.
My advice, as always, is go see the car and take a magnet with you. Pictures NEVER do a car justice. I only buy about 50% of the cars I go to see, and I only go see cars I'm pretty sure are coming home with me. So 50% of the time I find stuff that I couldn't see in the pics that are deal breakers.