I was a Automotive Technology instructor in SoCal for over 30 years. I met made many connections in the industry. I suggest you (at least) talk to Dave at Arrow Engines in Temecula. The appearance of his shop will make you think twice but he does great work, on time and at a fair price. He rebuilt my Hemi (among many other projects) and I was very pleased with his work. It qualifies as "SoCal" but it will be about an hour from LA.