There's a new brewery at Feather Falls Casino in Oroville thats about 20 mins away from Sierra Nevada. I can't vouch for it yet but planning to go in a couple of weeks.
I would call/email Kegconnection they put a kit together for me just as you described i got a duel body regulator, 1 keg, 1 set of lines and a CO2 tank from them because i wanted to do the same thing as you. They where really helpfull with my questions.