That's a Blackhawk, not a Vaquero.Howdy
I see them at shows all the time. Why not have a dealer call up and order one?
There is one on Gunbroker right now.
http://www.gunbroker.com/Auction/ViewItem.aspx?Item=361915700
Unless you are talking about the 'original model' Vaquero with the Bisley grip. That has not been made for a while. But they are still around.