I have a driveshaft from a totaled WS6 that I used for a year or two before getting a custom shaft. It seemed to work ok but has a small groove from rubbing against something in the past. $50 plus shipping to anyone who wants it.***Pending sale***
The 93 to 97 and 98 to 02 one piece driveshafts are all compatible with the third gens, the big advantage of the 98-02 LS1 aluminum shafts being their lighter weight and increased strength.