Here is an example of a 25.2 cage I am working on right now.
We are completing the car here, but as a roller, with front and rear suspension, wheels/tires, and rear end, you are looking at about $12,000.
http://i448.photobucket.com/albums/q...9/SDC12586.jpg
http://i448.photobucket.com/albums/q...5/SDC12651.jpg
http://i448.photobucket.com/albums/q...5/SDC12650.jpg