I believe Rock Star Guitars sold 3 road cases for the basses a few years ago..one red, one white, one blue...I'm assuming there were several cases for each instrument (original, custom road cases, etc.)and I'm sure they were swapped around depending on the tour, timeframe...John also kept many instruments on stands around the house with cases stored elsewhere.
I refuse to get sentimental about anything owned by the Hard Rock...they buy in bulk & display for profit. Keep the case & enjoy the memories, it's better in your hands than theirs.