You could put a Wanted ad in the Classified section of this site. Might get lucky...
Sometimes a large dealer like Lazydays will have one in his "take offs" warehouse. Buyers sometimes want things swapped out and the dealer ends up with the original. RV salvage yards are another possibility.
If its still in use in a current floor plan, you could order one from the RV manufacturer where you saw it. Or if the piece was made by Villa or Flexsteel, you could get it right from them.
2004 American Tradition; 2013 Buick Verano
Homebase in the Ocala Nat'l Forest near Ocala, FL