QCSA and Insurance Auto Auctions are also big, in addition to Copart. All three have on-line bidding, but you first have to set up an account with them under a licensed business. Also, you generally have to pick up at the yard of the sale within a couple of days after purchase. One way to get around this is if you are friendly with a local salvage yard who already has an account with the auction yards. They may be able to broker the purchase for you. Some big salvage yard even send trucks to these far away locations to buy stock and may be able to transport home for you. All the flood vehicles from the East coast will probably have a salvage only title due to the flood and will be listed on a federal flooded vehicle database. This is not an issue for a race car, but makes them pretty much parts only from a resale standpoint. Keep in mind that computers are likely junk and maybe even wiring harnesses if they were exposed to salt water. Also, they can have there own crop of mold and bacteria from the water exposure along with anything else that was also in the nearby water. You should use gloves and mask when taking these apart until they can be properly cleaned and dried.
Still, this could be a great opportunity for a sound race car. There are many portential cars listed around NJ and NY.