I have the case, manual, and back insert for this quite rare and difficult to get US Saturn title published by Koei, but this DOESN'T include the Winning Post game disc itself so it would be a good opportunity for anyone looking to piece together a complete copy rather than having to replace it with the purchase of a complete copy (which, from what I've seen, sell in the neighborhood of 40-60 dollars).
The manual and insert are darn near close to flawless, but the case lid has some cracks so I'd imagine a collector would want to swap it out with a different Saturn game's lid. Should be no biggie since Saturn cases aren't unique to each specific game.
If anyone is interested, just shoot a PM my way with an offer, and I could also get some photos taken if requested.