Phalanx posted what I was thinking, and actually had sitting as a draft.
Used ones do come up here occasionally. They seem to bring $3-400 here, depending upon how complete the package is, or what extras they may have included.
Muzzle-loaders.com has a variety of them in stock for $369 and up. (Might even be able to find a “free shipping” promo?)
I did wait a long time for their case for this pistol to come back into stock... My only suggestion there would be to get a similar-sized case from Boyt, for a similar dollar amount. The Boyt has a much better “feel.”