Contact your nearest Northgate Market. They sell whole pigs, heads, etc. at reasonable prices. Don't know about them being non-factory farmed, though. I've purchased good quality from their Santa Ana locations in the recent past.
try a grocery market that caters to the latino community, like liborio's or even the grand central market...or, a neighborhood carniceria in the east los angeles area, only thing will be if the pig was farm raised or factory