Gangfight Games put up their Blackwater Gulch Army Builder files up online for your perusal.
From the announcement:
I’m happy to announce that we have just finished the data files for Blackwater Gulch!
The files will let you create your own custom gang and gang members, and it has the character info for the Clancy Gang, Bloodwolf Tribe and Hired Guns. We’ll get the Vigilance Committee and Bandidos Mexicanos added soon, so the files will all be ready to go by the time the models are released.