The IM on BaT looks solid, but yes, I would guess the auction on that one will end around $40k.
I would be weary of any replica that's around $10-15k. You'll end up spending at least double that making it drivable and maintaining it. I bought a great car last year from a member of this page (great and reputable guy), and I still had to put $5k in the car replacing parts last year. Looks can be deceiving, and I learned that through my searches. Make sure you have any seller do an independent PPI before any purchase so you can make sure you know what you're buying.
I'm not looking to sell my car - I absolutely love it and won't let it go even if I was offered double the money after 12 months of ownership. I was just interested to know what current potential buyers are looking to spend on the car.