The cost of a bike built by Orange County Choppers will vary depending on the features that you request, and the materials you wish used to build the bike.
We can tell you that Orange County Choppers currently has one bike for sale, a 2010 OCC original, green and gold, listed for $38,900.00. It weighs 634 pounds, has a wheel base of 87", and a seat height of 24", you can see it here (until it's sold).
Previously they had a 2008 Bagger, black, listed for $31,000.00, which is apparently sold. If you wish to get a price quote from them they have a web form you can fill out at their web site.