Craig's and eBay have thousands of em
On CL make sure to check the box for surrounding areas
And "search tempest " is good for looking farther away
It's worth it to travel a little and pay a little more to get a nicer truck
Although in Cali you shouldn't have any rust problems but you got smog inspection hassles out the wazoo so getting one old enough to be exempt from that hassle would be a top priority if I lived there