Stan, ya ol gun nut you. If you prefer the more authenitc look, then Cimarron Arms, EMF or Aldo Uberti are 3 manufacturers that make 1873 Colt and 1875 Remington copies. Colt makes the Colt Cowboy but it ain't naywhere near the top of the list and I'm not gonna pay $1800 for an 1873 Colt, period. The other makers I mentioned are all in the $4-500 range and come with a myriad of finishes and configurations.
I would get myself back to another match and ask a buncha questions of the shooters regarding what they have and what they prefer. In all the cowboy matches I have been to I have always found the participants to be wonderfully forthcoming about their choices and with their advice. Well, there was one exception and she was there for a fashion statement, not the competition (cause nobody had a nose bigger than her's - lol). HTH. Mikey.