Anyone ever done this or heard of it being done? How much do you think getting one of these would be?

Mercedes-Benz slk55 Amg Auto Salvage Auctions

The brakes and engine are what I would mainly be after.

Or this one

http://www.salvageautosauction.com/v...exas/id/0/pg/1

it says value 30K and repair cost 20k. Are they just trying to say if you invest 20k then you could sell for 30K? Minimum bid is $200 and bidding ends in 6 days with no bids so far.