If your still searching...there's an outfit 20 miles west of Patterson and I-5 on Del Puerto Canyon Road called ...Broadside Boars Hunting Adventures. That's maybe an hour west of Atwater.
www.Broadsideboarshunting.com Johnny Rosca 916-813-1200
They have tree stands and blinds available, a couple are on the ranch photos. They offer 3 days/2 nites- $550 and lodging, heat & AC, showers and cleaning area, cooler, etc. Not to many outfits offer blinds in Cal., maybe on self hunt packages the guide can lead you to sit near water or a well traveled area. You can find more guides if you google 'wild boar guides in Cal.' or look up DFG. Good luck