How much for a stock drive shaft?

Some of you may have already read my post on the used 07 GT500 I bought from a guy in Chicago and the issues so far. Well, it looks like the seller had broken the stock drive shaft and replaced it with a Powerstroke one-piece aluminum drive shaft with a safety strap/bar. I want to go back to a stock drive shaft and need to know how much I can get one for, and what the aluminum shaft I have would be worth.

Any info and advice is appreciated

Thanks

The GT drive shafts are different than the GT500 - something about handling 200 HP more. I'd have to get the aluminum checked out before selling it. Paul's High Performance thinks there may be a problem with it. Looks like I'll be buying a used one from PHP for $400 this week. Once I get the aluminum one checked out, if it's ok I'll put it up for sale.