I can recommend a guy named Anthony who installed my VWR springs. He does a lot of work with BMWs and VWs. He works out of his garage out in a "country" area of Elk Grove, which would be close to you in Rancho. He was much more reasonable $-wise than the shops and really knew his stuff. Good guy. Plus you can pet all the farm animals while you're there.
(530) 255-4292